Seattle Mariners first baseman Donovan Solano (39) hits an rbi single during the tenth inning against the Texas Rangers at Globe Life Field on June 27. Kevin Jairaj-Imagn Images

Most Recent Seattle Mariners Series Win Could Have Major Playoff Impact

Originally posted on Seattle Mariners on SI
By Brady Farkas | Last updated Jun 30, 2025 1:30 PM ET

The Seattle Mariners secured the season series against the Texas Rangers on Sunday afternoon by beating the division rivals 6-4 in 12-innings. Through nine games against Texas, Seattle is now 7-2.

The Rangers are 41-43, so the season series tiebreaker may not end up mattering if they continue to struggle, but for the M's, it's important to just keep stacking wins against American League playoff possibilities. And for an organization that has missed the playoffs by one game in each of the last two seasons, owning as many tiebreakers as possible is critical.

Furthermore, the Mariners also earned the season series over the Minnesota Twins on the most recent road trip, as the M's have gone 4-3 against them in 2025.

Mariners also clinched the Wild Card tiebreaker with Minnesota and Texas on that road trip, in case that ends up mattering. https://t.co/SRAxFQcWrA
— Mariner Muse (@MarinerMuse) June 29, 2025

Records vs. other wild card contenders

The Mariners will get their first look at the Royals this week, as they kick off a four-game series against Kansas City on Monday night at T-Mobile Park (6:40 p.m. PT).

The Royals advanced to the American League Division Series last season, but enter play on Monday at 39-45 and as one of the most disappointing teams in baseball this season. After a 6-4 road trip, Seattle will have to find a way to dig down and play well even without an off day.

The Mariners will send right-hander George Kirby to the mound in the opener. He's 1-4 with a 5.40 ERA since coming off the injured list in late May. The M's could use some length out of him as well, as the bullpen has been heavily taxed. The Mariners played three straight extra-inning games against Texas.

Michael Wacha pitches for Kansas City. He's 4-7 with a 3.33 ERA.

This article first appeared on Seattle Mariners on SI and was syndicated with permission.

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