Full Breakdown
Mariners vs. Pirates: Series Opener Highlights Midseason Stakes
6/25/2026, 1:48:02 AM
Series Overview and Stakes
The Seattle Mariners travel to Pittsburgh for a three-game series on June 23-25, 2026. Game 1 starts at 3:40 p.m. PT, Game 2 at the same time the next day, and Game 3 begins at 9:35 a.m. The Mariners sit at 41-39, leading the AL West, while the Pirates are 39-39 in the NL Wild Card race. Both clubs view the series as a chance to improve their postseason positioning.
Pitching and Hitting Matchups
Seattle’s opening starter is right-hander George Kirby (5-7, 4.10 ERA, 3.42 FIP). He faces Pittsburgh’s Mitch Keller (5-4, 4.92 ERA, 3.98 FIP), a five-year mid-rotation mainstay whose strikeout rate has slipped to 18.4 % and walk rate risen to 8.8 %. The second game pits Seattle’s Bryan Woo (6-5, 3.94 ERA) against Braxton Ashcraft (6-3, 3.18 ERA, 3.04 FIP), a former top prospect now relying on strong breaking balls. The finale features Bryce Miller (3-1, 1.58 ERA) versus Bubba Chandler (2-7, 4.62 ERA, 4.73 FIP), with Chandler’s command and 13.1 % walk rate noted as a concern. Offensively, Pittsburgh leans on left-fielder Bryan Reynolds (wRC+ 145) and first-baseman Ryan O’Hearn (wRC+ 115), while Seattle’s left-handed power includes Randy Arozarena and Cal Raleigh, who homered in the series opener.
Statistical Outlook
FanGraphs gives Seattle a 51.6 % win probability for Game 1, dropping to 49.1 % for Game 2 and 49.7 % for Game 3. Pittsburgh’s win chances are 48.4 %, 50.9 % and 50.3 % respectively. Team wRC+ ratings are 102 for Seattle (7th in the AL) and 107 for Pittsburgh (3rd in the NL). Pittsburgh’s starting-pitching FIP- rating (89) ranks third in the NL, while Seattle’s bullpen FIP- rating (90) is second in the AL.
Media Commentary and Criticism
Analyst Daniel Kramer highlighted Seattle’s “piggyback” rotation and noted the series avoids Paul Skenes. A commentary observed that “the Pirates are 39-39 and starting to spiral a bit,” while also stating “Seattle’s offense has been scuffling too.” The same analysis referenced Pittsburgh’s “King Felix treatment” of its rotation, suggesting heavy starter usage. Critics point to Seattle’s inconsistent run production despite a left-handed lineup and to Pittsburgh’s reliance on injured prospects such as Konnor Griffin. Chandler’s 13.1 % walk rate further raises doubts about his role.
Game Recap (On-the-Ground Report)
In the series opener, Cole Young’s two-run seventh-inning homer, in his first major league game, gave Seattle a 3-2 win, preserving the Mariners’ AL West lead. Cal Raleigh added a solo fourth-inning homer, his first since April 27. George Kirby earned the win, allowing two runs (one earned) over six innings with five strikeouts. Mitch Keller, entering with a five-game winless streak, surrendered three runs and seven hits in six-plus innings. Andrés Muñoz closed with a perfect ninth for his 14th save.
Looking Ahead
Seattle’s next starter, Bryan Woo, will face Braxton Ashcraft on June 24, followed by Bryce Miller versus Bubba Chandler on June 25. Pittsburgh will continue without Paul Skenes, who has lost seven straight starts. Both clubs aim to solidify their postseason trajectories as the season reaches its midpoint.
