YESTERDAY

St. Louis won the series opener last night, 4-1, with Jimmy Crooks hitting a two-run homer in the third and Jordan Walker going 3-for-4 with 2 runs scored; Quinn Mathews struck out 7 over 5.2 innings to anchor the pitching staff.

NL CENTRAL STANDINGS

RECENT RESULTS (LAST 10)

STARTING PITCHERS

Kyle Leahy (R), Cardinals: Leahy enters today at 10-4 with a 3.13 ERA across 126.1 innings and 25 starts, striking out 115 and walking 37. The surface numbers tell a strong season story, but the platoon split beneath them is sharp: against right-handed batters he has held opponents to a .215/.255/.342 line across 253 BF, while left-handed batters have tagged him for .306/.379/.460 across 278 BF -- a gap wide enough to shape any lineup construction against him. He has worked into a third pass in 21 of 25 starts, and the conditional figures from those outings show a meaningful climb: batters posted a .789 OPS against him in the second pass during the starts he reached the third (188 PA), then a 1.017 OPS in the third pass itself (92 PA). The within-game delta is real and stable -- his 84-percent third-pass rate means extended outings are the norm, not the exception, so late-lineup exposure is a live question today.

Lake Bachar (R), Pittsburgh: Bachar is 1-3 with a 3.70 ERA in 73.0 innings on the season, with 75 strikeouts and 30 walks. Most of that work has come out of the bullpen -- he has made only 6 starts -- and the home/road split is dramatic: a 2.16 ERA at home against a 4.99 ERA on the road, where today's game is played from Pittsburgh's perspective (Busch Stadium, Cardinals home). His strikeout rate is sharp (25.0 K%) and he has suppressed right-handed bats to a .164/.238/.328 line across 131 BF, while left-handed bats have done more damage at .218/.320/.381 across 169 BF. With only 6 starts to his name and a sample capped at 54 first-pass BF in the TTO logs, he has barely pitched into a second pass all season (2 BF, both strikeouts) and never into a third -- the Cardinals can reasonably expect a short leash and a bullpen game behind him.

EXPECTED LINEUPS

Cardinals (Yesterday's lineup from 2026-08-28)

Handedness: 4 RHB (Herrera, Walker, Fermín, Báez), 5 LHB (Wetherholt, Burleson, Church, Gorman, Crooks).

Pirates (Yesterday's lineup from 2026-08-28)

Handedness: 6 RHB (Triolo, Valdez, Gonzales, Flores, Yorke, Davis), 1 LHB (Cruz), 2 SHB (Reynolds, Mangum).

INJURIES & ROSTER NOTES

Cardinals

Andre Pallante -- 2026-08-18: St. Louis Cardinals placed RHP Andre Pallante on the 15-day injured list retroactive to August 18, 2026. Right elbow inflammation.

Hunter Dobbins -- 2026-08-22: St. Louis Cardinals placed RHP Hunter Dobbins on the 15-day injured list. Right forearm tightness.

Everson Pereira -- 2026-08-23: St. Louis Cardinals placed RF Everson Pereira on the 10-day injured list. Left hand contusion.

Ramón Urías -- 2026-08-23: St. Louis Cardinals activated 3B Ramón Urías from the 60-day injured list.

Peter Strzelecki -- 2026-08-26: St. Louis Cardinals placed RHP Peter Strzelecki on the 15-day injured list retroactive to August 26, 2026. Right forearm extensor inflammation.

Blaze Jordan -- 2026-08-28: St. Louis Cardinals placed 3B Blaze Jordan on the 10-day injured list. Left ankle sprain.

Pirates

Oneil Cruz -- 2026-08-17: Pittsburgh Pirates activated CF Oneil Cruz from the 60-day injured list.

The Cardinals bullpen has taken consecutive hits: Pallante (elbow), Dobbins (forearm), and Strzelecki (forearm extensor) are all on the injured list, stripping three right-handed arms from the relief corps in roughly a ten-day span. At third base, Jordan's left ankle sprain lands him on the 10-day list, opening a corner infield gap that Ramón Urías -- activated from the 60-day list earlier this week -- is positioned to fill. Pereira's left hand contusion removes a right-field option. On the Pittsburgh side, Cruz is back in the lineup after his return from the 60-day list, restoring a dangerous bat to the center of the Pirates' order.

2A: BVP -- CARDINALS BATTERS VS OPPONENT STARTER

Small sample: Nathan Church (2 PA), Iván Herrera (2 PA), Alec Burleson (1 PA), Jordan Walker (1 PA), Nolan Gorman (1 PA).

The career BvP history against Lake Bachar is essentially nonexistent -- every Cardinals lineup bat has 2 PA or fewer against him, and the table's small-sample flag covers all five rows. Nathan Church (2 PA) and Iván Herrera (2 PA) are 0-for-2, with Church striking out once; those results carry no predictive weight at this sample. Alec Burleson and Jordan Walker each have a single career AB, both hits -- Burleson a single (career BvP: 1.000/1.000/1.000) and Walker a double (career BvP: 1.000/1.000/2.000) -- but 1-AB outcomes are noise, not signal. Nolan Gorman has 1 PA, 0 AB, and a walk, so no batting-line figures are available. No batter clears both the 10-PA and .400 AVG danger thresholds -- the sample ceiling prevents it across the board.

Four lineup starters -- JJ Wetherholt, José Fermín, Joshua Báez, and Jimmy Crooks -- have no career BvP history against Bachar at all. With the matchup record this thin, the more useful context is Bachar's 2026 platoon work against left-handed batters (five Cardinals starters bat left), where he has allowed a .218/.320/.381 line across 169 BF this season.

No significant bench BvP history.

2B: BVP -- OPPONENT BATTERS VS CARDINALS STARTER

Small sample: Bryan Reynolds (4 PA), Oneil Cruz (4 PA), Nick Gonzales (3 PA), Jake Mangum (1 PA), Jared Triolo (1 PA).

Career BvP against Leahy is thin across the board -- no Pittsburgh batter in the table has more than 4 PA against him. Bryan Reynolds has gone 0-for-4 with 3 strikeouts. Oneil Cruz has reached in 2 of 4 trips (.333/.500/.333, 1 BB, 2 K). Nick Gonzales is 1-for-2 across 3 career trips (.500 AVG, .333 OBP). Jake Mangum has one plate appearance, one hit. Jared Triolo drew the lone walk in his only PA. No one in tonight's projected Pittsburgh lineup has 5 or more career PA against Leahy, so these figures carry essentially no predictive weight on their own.

2C: PLATOON SPLITS -- CARDINALS

2026 companion columns: sample floor is 60 PA vs this hand (below floor renders SSS in the table above). Above that floor the 2026 vs-hand figure leads the read, with 2025 as the historical anchor; below it, 2025 leads.

Against Bachar's right hand, the Cardinals lineup tilts toward the favorable side: five left-handed bats headline a nine-man card that also carries four right-handed hitters. The split picture is uneven, though, and the 2026 readings now carry the larger samples for every player shown.

Burleson is the clearest advantage. His 2026 vs-RHP line of .322/.957 OPS across 393 PA runs well ahead of his 2025 mark (.296/.353/.478, 419 PA), and the 2026 sample size is comparable -- he enters as one of the lineup's most reliable threats against right-handed pitching. Walker has quietly flipped the script on his own historical read: 2026 vs RHP .291 AVG and .829 OPS across 409 PA, a substantial step forward from his 2025 figure (.200/.263/.291, 289 PA). Church's 2026 mark (.248 AVG, .677 OPS, 297 PA) similarly outpaces the thin 2025 read (.114/.216/.182, 51 PA), though the current 2026 line still sits in a cautionary range.

The left-handed spots carry more exposure. Gorman's 2026 vs-RHP line is .199 AVG and .630 OPS over 201 PA, essentially tracking his 2025 (.201/.294/.349, 309 PA) -- both years point to a pronounced platoon gap. Crooks shows a similar pattern: .183 AVG and .574 OPS across 127 PA in 2026, with the 2025 baseline (.108/.132/.162, 38 PA) offering little additional comfort. Among the right-handed bats, Herrera's 2026 read (.244 AVG, .713 OPS, 413 PA) trails his 2025 (.268/.343/.399, 328 PA), a meaningful step back over a large sample. Fermín has declined sharply in 2026 vs RHP: .219 AVG and .572 OPS across 162 PA, well below his 2025 (.280/.379/.420, 59 PA).

The lineup's left-handed lean is a structural match for a right-handed starter, but Burleson and Walker carry the weight of that advantage -- the other left-handed spots are liabilities, and two of the four right-handed hitters have moved backward in 2026.

2C: PLATOON SPLITS -- OPPONENT

2026 companion columns: sample floor is 60 PA vs this hand (below floor renders SSS in the table above). Above that floor the 2026 vs-hand figure leads the read, with 2025 as the historical anchor; below it, 2025 leads.

Kyle Leahy is right-handed, and six of Pittsburgh's nine projected starters bat right-handed against him -- a structural mismatch the splits make plain. Jared Triolo (SS, leadoff) is the starkest example: 2026 vs RHP shows .225 AVG and a .609 OPS across 192 PA, with his 2025 anchor (.203/.298/.306, 254 PA) confirming the pattern holds across multiple seasons. Henry Davis (C, ninth) is similarly suppressed -- 2026 vs RHP: .182 AVG, .636 OPS across 184 PA, with a .174/.241/.272 line in 221 PA in 2025. Nick Yorke (3B, eighth) carries only 47 PA vs RHP in 2025 -- .178/.213/.267 -- and his 2026 sample is below the 60-PA floor; the historical line is the operative read, and it is poor.

The two switch-hitters offer a different picture. Bryan Reynolds (DH, third) bats left against Leahy, neutralizing the hand advantage: 2026 vs RHP: .249 AVG, .774 OPS across 391 PA, ahead of his 2025 mark (.241/.312/.390, 487 PA). Jake Mangum (LF, seventh) also flips to his left-hand side: 2026 vs RHP: .289 AVG, .726 OPS across 292 PA, modestly below his 2025 line (.304/.340/.380, 291 PA) but within a competitive range.

Oneil Cruz (CF, fourth) is the only natural left-handed batter in the order and represents the clearest platoon threat: 2026 vs RHP: .245 AVG, .844 OPS across 220 PA, with 19 HR and a .229/.320/.438 line in 419 PA in 2025 providing the historical anchor. Nick Gonzales (3B, fifth) bats right but has hit Leahy's handedness well by recent measure -- 2026 vs RHP: .323 AVG, .809 OPS across 359 PA, above his 2025 baseline (.266/.298/.355, 309 PA). He is the right-sided bat most likely to cut against type. Rafael Flores Jr. (C, sixth) has a negligible 2025 sample vs RHP (8 PA) and his 2026 figure is below the floor; the lineup card rather than the splits table is what matters for him tonight.

2D: PITCHER PLATOON SPLITS

Lake Bachar (RHP) faces a Cardinals lineup that leans left-handed -- five of nine batters hit from that side. That cuts against his better split: 2026 vs LHB, opponents are batting .218 with a .701 OPS across 169 BF, but 2025 shows a sharper gap (.183/.604 on 142 PA). Against right-handers his numbers tighten further -- 2026 vs RHB: .164 AVG, .566 OPS in 131 BF, well below his 2025 mark (.239/.758, 154 PA). The Cardinals' five left-handed bats -- Wetherholt, Burleson, Church, Gorman, and Crooks -- press into the more vulnerable side of Bachar's ledger; the four right-handed bats (Herrera, Walker, Fermin, and Baez) land on his stronger side.

Kyle Leahy (RHP) draws a Pirates lineup built almost entirely around right-handed and switch-hitting bats -- six right-handers, two switch-hitters, and only Oneil Cruz from the left side. That alignment plays into Leahy's arm: 2026 vs RHB, opponents are hitting .215 with a .597 OPS across 253 BF, well below the 2025 baseline (.238/.589, 200 PA). Vs LHB is the exposure -- 2026 vs LHB: .306 AVG, .839 OPS in 278 BF, meaningfully higher than his 2025 figure (.252/.701, 163 PA). Cruz is the one left-handed threat in the order, and that split suggests he is precisely the type Leahy needs to navigate carefully.

2D-HA: PITCHER HOME/AWAY SPLITS

Tonight's venue cuts differently for each starter. Leahy takes the mound at Busch Stadium, where his 2026 ERA sits at 2.91 across 65.0 innings -- a sharp reversal of his 2025 home ERA of 4.47, which the table flags in red. He has been measurably better on his own field this season, and the trend holds across a full workload. Bachar arrives as the road starter, a context that has cost him in 2026: his away ERA is 4.99 over 39.2 innings, well above the 2.16 he carries in home starts. His 2025 away baseline was 3.68, so the current road figure represents a step back from that reference point. The split inversion is the story in this matchup -- the home pitcher owns the stronger venue advantage by a wide margin.

2E: TTO SPLITS (TIMES THROUGH ORDER)

Lake Bachar has pitched into a third pass in 0 of 6 starts. Early hooks: 6 starts, 2 PA. Kyle Leahy has pitched into a third pass in 21 of 25 starts. In the 21 starts he pitched into a third pass, hitters posted a .789 OPS on the second pass -- 188 PA. From the third pass on in those same starts: 1.017 OPS -- 92 PA. Early hooks: 4 starts, 24 PA. Per-pass rate stats resting on fewer than 50 PA render as their PA count, never as a decimal; 2026 companion columns carry their own 60 BF floor (below floor renders SSS).

Bachar has been a short-outing starter in 2026, reaching a second pass in only 2 plate appearances across 6 starts and never pitching into a third pass. His first-pass work carries the entire scouting load: 2025 opponents hit .214/.300/.395 with a .695 OPS across 284 PA, a profile suppressed by a 74-strikeout, 29-walk mix. His 2026 first-pass sample of 54 BF sits below the display threshold, but the raw count points to continued short outings rather than a lengthening pattern.

Leahy's order-cycle arc is the sharper story. His 2025 first-pass mark across 355 PA was .247/.304/.341, a .645 OPS that held hitters well below league average. In 2026 his first pass has been even crisper: .207 AVG and a .562 OPS across 227 BF. The difficulty compounds through the lineup cycle. Leahy has pitched into a third pass in 21 of 25 starts. In those 21 starts, hitters posted a .789 OPS against him in the second pass across 188 PA -- a sharp rise from his first-pass baseline. From the third pass on in those same starts, the OPS climbed to 1.017 across 92 PA. The within-game escalation is not a small-sample artifact: a stability check across 2,000 resamples put the probability of a true positive delta above the league norm at 82.9 percent. Managers looking for a lever should note the second pass as the inflection point; the third pass, when reached, has been consistently expensive.

2F: INHERITED RUNNERS PROFILE

League average strand rate: ~68-72%. Among Cardinals relievers with inherited-runner exposure this season, Michael McGreevy leads the group at 100.0% (3 IR, 0 scored), though his sample is small. Riley O'Brien sits at 70.0% (10 IR, 3 scored), the only other reliever here at or above league average. Kyle Leahy has handled the heaviest inherited-runner load -- 29 total, the most on the staff -- and stranded 62.1% of them, a tick below league average. Gordon Graceffo (54.5%, 11 IR) and Ryan Fernandez (50.0%, 8 IR) are the two relievers well below the league band. All strand-rate figures carry a 2025 season scope.

In 2026, Leahy has logged 126.1 IP with a 3.13 ERA and 1.30 WHIP; his inherited-runner work has come in a high-volume role. Graceffo (66.1 IP, 2.98 ERA, 1.07 WHIP) has been one of the more efficient arms in the pen by rate, despite the below-average strand rate. O'Brien (54.2 IP, 3.95 ERA, 1.23 WHIP) and McGreevy (142.1 IP, 3.86 ERA, 1.25 WHIP) round out the group with full-season lines available. Fernandez has thrown 19.1 IP in 2026; his ERA and WHIP lines carry too small a sample to report as rates.

2G: BATTED BALL MATCHUP

Pitcher Batted Ball Profiles (2025)

Hitter Batted Ball Results (2025) -- PIT

Leahy's 2025 profile skews groundball at 44.2% GB on 249 BIP, with fly balls suppressed to 26.9%. That shape collides productively with Pittsburgh's lineup: Cruz, Davis, Gonzales, Triolo, and Yorke all post 2025 fly-ball averages under .100, meaning Leahy's tendency to keep the ball on the ground denies those hitters the contact type where they do the least damage. The lineup's real threat is the line drive -- Cruz (.590), Reynolds (.600), Gonzales (.584), and Yorke (.600) all punish well-struck balls at that trajectory. Leahy's LD% of 27.7% is not dominant, so the matchup hinges on whether he stays down in the zone.

Bachar's 2025 profile is more neutral -- 36.0% GB and 36.0% FB across 178 BIP -- giving him less clear contact-shape leverage against the Cardinals. The Pittsburgh hitters who could exploit a flatter offering are Mangum (.344 2025 GB AVG) and Gonzales (.283), who punish grounders more than most of their teammates; Cruz (.240) is also viable on the ground. But across the full lineup, line drives are again the danger: every Pittsburgh regular shows a 2025 LD AVG above .520, which means if Bachar misses his spot and leaves the ball elevated at line-drive height, most of the order is equipped to make him pay.

2H: BATTERY PAIRING

Jimmy Crooks is tonight's scheduled catcher, and the 2025 pairing history with Kyle Leahy shows 0 IP together -- this is a fresh battery with no prior reps between them. Crooks is on the Cardinals active roster; the three other catchers in the table are also Cardinals roster members (Pedro Pagés, Iván Herrera) or were previously part of the organization (Yohel Pozo, who does not appear on the current Cardinals active roster and whose numbers here reflect 2025 work with a prior club).

Among the catchers with actual innings logged behind Leahy in 2025, Pagés leads by a wide margin -- 43 games and 62.0 IP, with a 3.05 ERA and .225 average against. Pozo's 13-game, 16.0-IP sample produced the best ERA in the group at 2.25. Crooks and Herrera each appeared in 4 games, with Crooks posting a 8.53 ERA across 6.1 IP and Herrera a 6.00 ERA over 3.0 IP -- though both samples are too thin to carry much predictive weight. The game-plan question tonight is whether Crooks, catching Leahy for the first time, can establish the rapport Pagés built across 43 games of shared reps.

2I: BASERUNNING MATCHUP

Pittsburgh's running game is the primary threat tonight. Oneil Cruz leads the opposition at 22 steals in 26 attempts (84.6% success) in 2026, backed by a 2025 baseline of 38 steals at 88.4%. Jake Mangum adds 21 steals in 29 attempts (72.4%) in 2026, down from 81.8% on 27 attempts in 2025. Jared Triolo is 10-for-11 (90.9%) in 2026, sharpening a 2025 mark of 86.7% on 15 attempts. Bryan Reynolds has stolen 9 bases without being caught (100.0%) in 2026. Nick Gonzales is 7-for-9 (77.8%) in 2026. The Cardinals' two catchers present a meaningful split in deterrent value.

Behind the plate for St. Louis tonight is Jimmy Crooks, who has allowed 14 steals against 1 caught stealing in 15 attempts in 2026 -- a sample too small to publish a reliable CS rate. Pedro Pagés, the alternative on the Cardinals' roster, carries a publishable 30.9% CS mark across 55 attempts in 2026, making him the established deterrent option.

The Pittsburgh catchers offer a sharp contrast. Henry Davis has thrown out 17 of 36 baserunners (47.2% CS) in 2026 across 75 starts, a premium arm that will factor into Cardinals' baserunning decisions. Rafael Flores Jr. is at 13.6% (3 CS on 22 attempts) in 2026 -- well below Davis and a meaningful invitation to run when Flores is behind the plate.

2J: DEFENSIVE CONTEXT

Alec Burleson slots in at first base tonight, where his 2025 sample across 50 games shows 27 double plays turned and a .990 fielding percentage with 4 errors -- the most active position in his fielding portfolio. Jordan Walker handles right field, coming in with a .981 mark over 108 games in 2025 (4 errors, 2 double plays). Nolan Gorman draws third base tonight; his 2025 work at the hot corner covered 54 games at .950 with 6 errors and 11 double plays, while a smaller 28-game sample at second base shows a tighter .990. José Fermín starts in left field; his 2025 defensive work at that position covered only 4 games, all clean, though his primary sample is 15 games at second base with a perfect 1.000 fielding percentage. Nathan Church plays center, where he posted a 1.000 mark across 18 games in 2025 without an error. Jimmy Crooks catches, with 14 errorless games behind the plate in 2025. Joshua Báez also appears in left field tonight -- no 2025 defensive rows for Báez appear in the table, so no fielding figures are available for that slot.

2K: BALLPARK CONTEXT & HEAD-TO-HEAD

Against Pittsburgh, the Cardinals went 13-6 in 2022 before the series balance shifted -- Pittsburgh took 9 of 13 in 2023 and 7 of 13 in 2025, with St. Louis reclaiming an edge at 8-5 in 2024. Across the 2022-2025 stretch, the Cardinals hold a combined winning edge in two of those four seasons against the Pirates.

2L: BATTER K%/BB% PROFILE

Cardinals

Three Cardinals carry strikeout profiles that warrant attention. Gorman's 2026 K% sits at 32.8% across 241 PA, consistent with his 2025 mark of 33.8%. Walker has shown meaningful improvement -- 2026 K%: 24.3% across 564 PA, down from his 2025 figure of 31.8%. Crooks carries the sharpest contact concern in this group: 2026 K% of 32.9% across 146 PA, against a 2025 mark of 37.0%. On the walk side, Church's 2026 BB% is 5.6% (375 PA); his 2025 figure was 4.6%. Crooks drew zero walks across 46 2025 PA and has a 2026 BB% of 6.2% across 146 PA.

Pirates

Two Pirates carry elevated strikeout rates. Cruz's 2026 K% is 35.2% across 318 PA, above his 2025 mark of 32.0%. Reynolds has trended in a better direction -- 2026 K%: 23.7% across 591 PA, down from his 2025 figure of 26.5%. Flores posted a 2025 K% of 41.2% across 17 PA; no 2026 figure is available. On the walk side, Mangum's 2026 BB% is 5.5% across 403 PA, against a 2025 mark of 4.4%. Gonzales shows a 2026 BB% of 6.9% across 525 PA, up from his 2025 figure of 5.1%. Yorke's 2026 BB% is 6.5% across 108 PA, against a 2025 mark of 4.2%.

2M: BATTER BATTED BALL PROFILE

Cardinals

Against Bachar's 2026 ground-ball tendency (45.3% GB%), the Cardinals lineup skews toward contact that stays in the yard. Herrera is the most extreme grounder in this group at 52.6% GB across 285 BIP, which aligns with Bachar's profile -- expect plenty of infield work when Herrera squares one up. Walker (48.9% GB) and Burleson (42.0% GB) sit in a moderate ground-ball range. The outlier to watch is Gorman: his 30.2% GB and 41.7% FB mark him as the lineup's most pronounced fly-ball hitter, and his 28.1% LD adds a gap-power dimension. Bachar's ground-ball rate has climbed to 45.3% in 2026 from a near-even 36.0%/36.0% GB/FB split in 2025, but he remains far from a pure sinker type, leaving Gorman's elevated fly-ball tendency room to do damage. Church's 67.6% GB rate in a small sample stands apart from the rest of the group; routine if he puts it on the ground tonight.

Pirates

Leahy's 2025 profile (44.2% GB, 26.9% FB across 249 BIP) tilts toward grounders but is not an extreme suppressor of fly balls -- the Pirates lineup, heavy with ground-ball hitters, largely plays into his hands. Mangum and Cruz are the most ground-ball oriented Pirates in this group: Mangum ran a 62.0% GB rate over 337 BIP in 2025, and Cruz sat at 52.7% over 277 BIP. Reynolds (49.5% GB) and Yorke (54.7% GB, smaller 53-BIP sample) extend that pattern. Leahy keeps enough balls on the ground to neutralize that group's modest power profile. The matchup to track is Davis: his 34.9% GB and 42.6% FB over 169 BIP make him the lineup's clearest fly-ball threat, and Leahy's 26.9% FB-allowed rate means Davis represents a real mismatch if he lifts one. Triolo (41.4% GB, 32.8% FB) and Gonzales (47.9% GB, 26.7% FB) fit closer to the ground-ball mold Leahy prefers.

2N: PITCHER K%/BB% PROFILE

Leahy's command profile has held steady into 2026: his 2026 K% sits at 21.7% with a 7.0% BB%, consistent with his 2025 marks of 22.0% K% and 7.7% BB% across 88.0 innings. The 2025 K/BB of 2.86 reflects a starter who misses bats at an average clip while keeping walks in check -- a profile that rewards pitch efficiency rather than pure swing-and-miss volume.

Bachar carries more swing-and-miss upside alongside a somewhat higher walk rate. His 2026 K% is 25.0% with a 10.1% BB% -- nearly identical to his 2025 figures of 25.3% K% and 10.1% BB% over 71.0 innings, where he posted a K/BB of 2.50. The gap between the two starters is modest in run-prevention terms, but Bachar's wider walk band means counts and sequencing matter more when his command wavers.

KEY MATCHUPS

Leahy TTO3 meltdown threshold. Leahy has pitched into a third pass in 21 of his 25 starts this season. In the starts where he reaches a third time through, batters post a .789 OPS against him in the second pass -- and a 1.017 OPS in the third, a .228-point jump that ranks in the 82.9th percentile of all pitchers' within-game rises. St. Louis's ability to limit his exposure past two turns is the central decision of this afternoon's game.

Leahy vs. LHB vulnerability. Pittsburgh's left side of the lineup -- Oneil Cruz and switch-hitters Bryan Reynolds and Jake Mangum, both of whom bat left against a right-hander -- face the sharpest crack in Leahy's armor. 2026 to date: Leahy has allowed a .306/.379/.460 line against left-handed batters across 278 batters faced, a .839 OPS that stands well above his right-handed-batter mark. His 2025 vs-LHB figure (.701 OPS, 163 PA) understates the current exposure -- the 2026 sample at 278 BF now carries the heavier weight.

Bachar vs. Cardinals LHB. Lake Bachar enters Busch Stadium carrying a pronounced split disadvantage. 2026 to date: Bachar has allowed a .701 OPS against left-handed batters across 169 BF, with his 2025 mark (.604 OPS, 142 PA) running lower -- the larger current sample points in a less favorable direction for Pittsburgh. Against right-handed batters his 2026 OPS allowed drops to .566 across 131 BF (.758 in 2025 across 154 PA). St. Louis's five lineup LHBs -- Wetherholt, Burleson, Church, Gorman, and Crooks -- represent the Cardinals' primary avenue against him today.

Bryan Reynolds career vs. Leahy. Reynolds bats third for Pittsburgh today at DH and enters 0-for-4 with three strikeouts in his career against Leahy -- the most significant batter-versus-pitcher liability in the Pittsburgh lineup. Reynolds is a switch hitter who posted a .774 OPS (.249 AVG) against right-handed pitching across 391 PA in 2026, building on a 2025 line of .241/.312/.390 in 487 PA; that track record underscores how much a 0-for-4 career sample actually costs the Pirates' most dangerous bat in a short series game.

WATCHLIST

-- Kyle Leahy. Leahy has pitched into a third pass in 21 of his 25 starts this season. If he reaches the 60-to-75-pitch window, watch whether the Cardinals pull him before Pittsburgh's lineup cycles through a third time -- his third-pass .614 SLG (92 batters faced) represents the sharpest late-game exposure in this matchup.

-- Oneil Cruz. If Cruz reaches base, watch whether he tests Jimmy Crooks. Cruz has posted an 84.6% stolen-base success rate across 22 steals in 2026, and Crooks has thrown out just 1 of 15 would-be stealers in 2026 -- a combination that makes nearly every Cruz on-base event a potential running situation.

-- Lake Bachar. Bachar is pitching away from home, where he has carried a 4.99 ERA in 2026 against a 2.16 mark at home. If the Cardinals string together two or more baserunners in an inning, watch whether that road-context vulnerability compounds in a multi-run sequence.

-- Jordan Walker. Walker enters hitting .855 OPS in 2026 as the lineup's highest-upside right-handed threat. Bachar has allowed a .758 OPS to right-handed batters historically (154 PA, 2025). If Walker draws a fastball count early, he is the batter most likely to punish it.

QUICK REFERENCE -- IN-GAME QUERIES

1. How has Nolan Gorman performed against Kyle Leahy in their career?

2. How has Bryan Reynolds performed against Kyle Leahy in their career?

3. How has Oneil Cruz performed against Kyle Leahy in their career?

4. What are Kyle Leahy's third-time-through-the-order splits in 2025?

5. What are Jordan Walker's splits against left-handed pitchers in 2025?

6. What is Riley O'Brien's inherited-runner strand rate in 2025?

7. What are the park factors at Busch Stadium in 2025?