This interleague matchup features a clear pitching advantage for Seattle with George Kirby taking the mound against St. Louis' Andre Pallante. Kirby enters with a sparkling 2.97 ERA and excellent 1.05 WHIP, showcasing the control that has made him one of the American League's most reliable starters. His four-seam fastball sits at 96.7 mph with a devastating slider that has batters off balance. Conversely, Pallante has struggled with command early in the season, posting a concerning 4.95 BB/9 rate alongside a 4.05 ERA. His slider-heavy approach has been inconsistent, and the Cardinals will need him to attack the strike zone more aggressively. The offensive matchups favor different aspects for each club. St. Louis boasts Jordan Walker's emerging power, as he's already launched 8 home runs and driven in 16 runs despite a young lineup around him. Walker's .292 average suggests he's making consistent contact, and Kirby's fastball-heavy approach could play into his wheelhouse. For Seattle, Randy Arozarena brings proven MLB production with his .290 average and gap-to-gap approach. The Mariners' lineup construction has been hampered by injuries to key contributors like Brendan Donovan, who was just placed on the IL with a groin strain. Seattle's road struggles are impossible to ignore - their 1-8 away record is among the worst in baseball and represents a massive concern. Meanwhile, St. Louis sits at a respectable 7-5 at Busch Stadium, where the dimensions and fan support provide tangible advantages. The Cardinals have shown offensive upside in recent games, scoring 7+ runs in three of their last six contests. However, their pitching staff has allowed 123 runs through 24 games, creating a concerning trend that Pallante must buck tonight. Bullpen usage will be critical as both starters have shown stamina limitations in recent outings. The Cardinals' relief corps has been more reliable at home, while Seattle's pen has been overtaxed due to their rotation injuries. With Bryce Miller on the IL and other pitching depth concerns, the Mariners may need length from Kirby that he hasn't consistently provided. Weather conditions appear ideal with 73 degrees and overcast skies, neutralizing any atmospheric advantages for either side.

Scoring Dynamics

Early (1-3) 3R Kirby sharp early, Pallante settles after rough first

Middle (4-6) 4R Both starters tire, bullpens engaged

Late (7-9) 2R Cardinals bullpen holds slim lead

Matchup Analysis

Cardinals

Home field advantage at Busch

Jordan Walker power threat

Bullpen depth with key arms healthy

Pallante's high walk rate

Below average team ERA

Mariners

George Kirby's excellent control

Randy Arozarena contact ability

Superior run differential

Brutal 1-8 road record

Multiple key injuries

Brendan Donovan IL placement

Risk Factors

Pallante's control issues

Seattle's road struggles continuing

Key Matchups

Jordan Walker vs George Kirby batter Walker's power vs Kirby's fastball command

Randy Arozarena vs Andre Pallante batter Contact hitter vs high walk rate pitcher

Statistical Edges

First to Score Mariners 62%

Strikeouts 15 13-17

Total Runs 9 7-11

Game Preview

George Kirby establishes early command, painting the strike zone with his four-seamer to retire Walker and Scott II in order, but JJ Wetherholt works a two-out walk and scores on Victor Scott's clutch RBI single to give Seattle a 1-0 first inning advantage. Pallante responds by walking Randy Arozarena to lead off the bottom half before settling down to strand him at second base. The Cardinals answer in the second when Jordan Walker turns on a Kirby slider, driving it into the left field bleachers for his ninth homer to tie the game 1-1. Both pitchers cruise through the third inning, but the fourth proves pivotal as Seattle breaks through against Pallante's command issues. After issuing back-to-back walks, Arozarena delivers a clutch two-RBI single to put the Mariners ahead 3-1. The Cardinals immediately respond in their half of the fifth, as Wetherholt doubles and Walker drives him home with a sharp single. Scott II follows with an RBI groundout to tie the game at 3-3, then Pozo surprises with a go-ahead RBI double down the left field line. Kirby departs after six innings with Seattle trailing 5-4, having surrendered a sixth-inning RBI single to Fermín. The Mariners tie it in the seventh against the Cardinals bullpen on Connor Joe's sacrifice fly, but St. Louis reclaims the lead in the bottom of the eighth when Walker delivers his second RBI of the night with a clutch single. The Cardinals bullpen locks down the ninth inning, with their closer inducing a game-ending groundout to secure a 5-4 victory and snap their brief losing streak.

The confidence level reflects Seattle's exceptional road struggles (1-8) against St. Louis' solid home performance, but Kirby's pitching advantage over Pallante keeps this from being a higher conviction play. Multiple injury concerns for Seattle also tip the scales toward the Cardinals.

Probable Pitchers

G. Kirby Mariners

5-5 4.04 ERA

64 K

A. Pallante Cardinals

6-4 3.96 ERA

51 K

Seattle Mariners — Roster

Player	Pos	AVG	HR	RBI	OBP	SLG
J.P. Crawford	SS	.194	1	6	.359	.290
Cal Raleigh	C	.192	5	14	.280	.375
Julio Rodríguez	CF	.235	1	8	.328	.294
Josh Naylor	1B	.198	3	11	.278	.313
Randy Arozarena	LF	.289	2	10	.381	.423
Rob Refsnyder	RF	.069	1	2	.176	.172
Dominic Canzone	DH	.263	3	11	.328	.526
Cole Young	2B	.234	2	12	.321	.340
Leo Rivas	3B	.141	0	5	.263	.188

St. Louis Cardinals — Roster

Player	Pos	AVG	HR	RBI	OBP	SLG
JJ Wetherholt	2B	.220	3	11	.360	.341
Iván Herrera	C	.233	3	12	.391	.378
Alec Burleson	1B	.269	3	17	.355	.430
Jordan Walker	RF	.280	8	16	.343	.581
Nolan Gorman	DH	.222	3	15	.293	.358
Masyn Winn	SS	.270	1	11	.360	.405
Nathan Church	CF	.237	2	8	.292	.356
Ramón Urías	3B	.170	2	5	.273	.362
José Fermín	LF	.222	1	2	.290	.370

Scoring Plays

▲ 2

Cole Young singles on a ground ball to center fielder Nathan Church. Randy Arozarena scores.

1-0

▲ 4

Dominic Canzone singles on a ground ball to left fielder José Fermín. Josh Naylor scores.

2-0

▼ 4

Masyn Winn singles on a line drive to right fielder Luke Raley. Jordan Walker scores. Nolan Gorman scores. Masyn Winn to 2nd.

2-2

▲ 6

Josh Naylor homers (3) on a fly ball to right center field.

3-2

Seattle Mariners — Batting

Player	AB	R	H	RBI	BB	K	HR	AVG	OPS
J.P. CrawfordSS	2	0	0	0	1	1	0	.194	.649
Cal RaleighC	3	0	0	0	1	1	0	.192	.655
Julio RodríguezCF	4	0	0	0	0	0	0	.235	.622
Josh Naylor1B	3	2	1	1	1	2	1	.198	.591
Randy ArozarenaLF	4	1	1	0	0	3	0	.289	.804
Rob RefsnyderRF	1	0	0	0	1	0	0	.069	.348
Dominic CanzoneDH	3	0	1	1	1	1	0	.263	.854
Cole Young2B	4	0	1	1	0	1	0	.234	.661
Leo Rivas3B	4	0	0	0	0	0	0	.141	.451
Totals	30	3	4	3	5	10	1

BATTING

2B: Arozarena (7, Pallante).

HR: Naylor, J (3, 6th inning off Pallante, 0 on, 0 out).

TB: Arozarena 2; Canzone; Naylor, J 4; Young.

RBI: Canzone (11); Naylor, J (11); Young (12).

2-out RBI: Canzone; Young.

Runners left in scoring position, 2 out: Rodríguez, J.

GIDP: Young.

Team RISP: 2-for-8.

Team LOB: 6.

BASERUNNING

SB: Naylor, J (2, 2nd base off Pallante/Herrera).

FIELDING

DP: 2 (Young-Crawford, J-Naylor, J; Crawford, J-Young-Naylor, J).

a-Walked for Raley, L in the 6th.

St. Louis Cardinals — Batting

Player	AB	R	H	RBI	BB	K	AVG	OPS
JJ Wetherholt2B	4	0	1	0	0	0	.220	.701
Iván HerreraC	3	0	1	0	0	0	.233	.769
Alec Burleson1B	3	0	0	0	1	1	.269	.785
Jordan WalkerRF	4	1	0	0	0	2	.280	.924
Nolan GormanDH	4	1	2	0	0	0	.222	.651
Masyn WinnSS	4	0	2	2	0	1	.270	.765
Nathan ChurchCF	4	0	1	0	0	0	.237	.648
Ramón Urías3B	4	0	0	0	0	1	.170	.635
José FermínLF	3	0	1	0	0	0	.222	.660
Totals	33	2	8	2	1	5

BATTING

2B: Gorman (2, Kirby).

TB: Church; Fermín; Gorman 3; Herrera; Wetherholt; Winn 2.

RBI: Winn 2 (11).

2-out RBI: Winn 2.

Runners left in scoring position, 2 out: Church.

GIDP: Burleson; Walker, J.

Team RISP: 1-for-4.

Team LOB: 6.

FIELDING

DP: (Wetherholt-Winn-Burleson).

Seattle Mariners — Pitching

Pitcher	IP	H	R	ER	BB	K	PC-ST	ERA
George Kirby(W, 4-2)	6.0	5	2	2	1	2	81-54	2.97
Matt Brash(H, 4)	1.0	0	0	0	0	0	13-10	0.00
Gabe Speier(H, 4)	0.1	2	0	0	0	1	11-9	2.70
Eduard Bazardo(H, 3)	0.2	0	0	0	0	0	4-4	1.64
Andrés Muñoz(S, 4)	1.0	1	0	0	0	2	14-10	7.20

St. Louis Cardinals — Pitching

Pitcher	IP	H	R	ER	BB	K	HR	PC-ST	ERA
Andre Pallante(L, 2-2)	5.1	4	3	3	3	8	1	90-54	4.26
Justin Bruihl	1.0	0	0	0	2	0	0	20-9	5.40
George Soriano	0.2	0	0	0	0	0	0	11-8	4.35
Gordon Graceffo	2.0	0	0	0	0	2	0	23-15	0.66

Game Info

Umpires: Home Plate: Edwin Moscoso; First Base: Vic Carapazza; Second Base: John Bacon; Third Base: Hunter Wendelstedt

Venue: Busch Stadium, St. Louis

Weather: 68°F, Partly Cloudy

Wind: 2 mph, In From RF

Seattle Mariners — News

Mariners extend win streak to 7 with 2nd consecutive walk-off

Seattle (32-29, +31 run diff) has won 8 of last 10 and climbed to AL West lead despite ranking last in the division 10 games ago. Logan Gilbert (3.69 ERA, 3-4) starts today against NYM, with the Mariners' pitching staff anchored by Hancock (2.80 ERA, 4-2) and Woo (3.44 ERA, 5-3).

Logan Gilbert

Seattle Mariners

Mariners adopt six-man rotation for 16 games in 17 days

Seattle (29-29, +25 run differential) shifts to a six-man rotation with Bryce Miller starting and Luis Castillo piggyback-pitching Sunday, managing a brutal stretch that requires depth across their full staff. Hancock (2.78 ERA, 4-2) remains their most efficient starter, while Gilbert (3.69 ERA, 5-4) and Kirby (3.77 ERA, 5-4) anchor the rotation alongside the piggyback approach.

Luis Castillo

Bryce Miller

Seattle Mariners

Texas Rangers

Kurtz extends on-base streak to 47 games, chases McGwire A's record

Oakland's first baseman sits one game behind Mark McGwire's franchise record; Athletics (27-26, 5-5 L10) host Seattle tonight with Civale (3.31 ERA, 5-1) facing a Mariners rotation averaging 3.85 ERA (Kirby, Woo, Gilbert, Hancock) that's won only 4 of last 10.

Athletics

Seattle Mariners

Los Angeles Dodgers

Mariners Notes: Crawford, Rotation, Castillo

Crawford is batting .204/.362/.354 (107 wRC+ career) across 43 games, well below his historical average, while the Seattle rotation remains intact with Kirby (3.45 ERA, 5-3) and Woo (3.51 ERA, 4-2) leading a solid foursome. Castillo's 6.41 ERA and .366 xwOBA suggest he remains unavailable or struggling significantly.

Seattle Mariners

Mariners Recall Robinson Ortiz, Reinstate Patrick Wisdom

Ortiz makes his MLB debut as Seattle's rotation remains anchored by Hancock (3.02 ERA, 0.316 xwOBA) and Kirby (3.45 ERA, 0.286 xwOBA), though the Mariners sit 22-26 with a -3 run differential despite a +6 overall RS-RA gap suggesting better offensive support ahead.

Robinson Ortiz

Patrick Wisdom

Brennen Davis

Seattle Mariners

St. Louis Cardinals — News

Cardinals Activate Nootbaar From 60-Day IL

St. Louis returns a bat to lineup depth after extended absence, though the move comes as the team sits 31-28 and 3-7 over their last 10 games. Nootbaar's return addresses roster flexibility without addressing the rotation's struggles—five starters combining for a 4.27 ERA with xwOBA values ranging from 0.311 to 0.383.

Lars Nootbaar

St. Louis Cardinals

Cardinals Return Rule 5 Pick Matt Pushard To Marlins

Pushard never threw an inning for St. Louis (27.00 ERA in 0 IP), landing on IL almost immediately after the Rule 5 selection. The move has minimal rotation impact for either team given Miami's current 5-man group anchored by Meyer (2.97 ERA, 74 SO).

Matt Pushard

St. Louis Cardinals

Miami Marlins

Rangers Place Chris Martin On IL With Shoulder Impingement

Texas loses bullpen depth mid-stretch while sitting 28-31 with a +7 run differential. The recall of Curvelo (no 2026 stats) and debut of Ahlstrom provide options, but neither has established MLB track record against a Cardinals lineup facing deGrom tonight.

Chris Martin

St. Louis Cardinals

Texas Rangers

Cardinals Designate Matt Pushard, Recall Hunter Dobbins

Pushard appeared in zero games for STL before the move, making this a straightforward 40-man roster decision. Dobbins enters a rotation where Liberatore (4.76 ERA, 1.57 WHIP) and Leahy (4.25 ERA, 1.55 WHIP) are both above 4.25 ERA.

Matt Pushard

Hunter Dobbins

St. Louis Cardinals

Jimmy Crooks set for steady playing time at catcher

Crooks has no 2026 stats available to assess offensive production, making this a depth move for STL rather than an upgrade—the Cardinals are -10 in run differential while sitting 3rd in NLC with a L4 streak.

Jimmy Crooks

St. Louis Cardinals