Mariners Host Athletics to Open Seattle's First Showdown of 2026

The Seattle Mariners are ready to kick off their first matchup against Oakland this season, hosting the Athletics at T-Mobile Park on Monday night at 9:40 p.m. EDT. This is the start of a three-game series that could shift some momentum for both teams fighting in the AL West.

The Matchup

Seattle sits at 10-13 overall and fourth in the division, but there's a bright spot: the Mariners are 9-5 at home. That's the kind of record you build playoff hopes on. Oakland comes in at 11-11, currently first in the AL West, though they're just 6-6 on the road. The line favors Seattle, with the Mariners at minus 161 and the over/under set at 8 runs.

This matchup matters because of how each team has performed lately. Seattle is 6-4 in their last 10 games with a .258 batting average and a 4.03 ERA. The Mariners have also been dangerous when they get rolling, posting an 8-3 record in games where they scored five or more runs. Oakland has matched that 6-4 record in their last 10 but are giving up runs at a 4.89 ERA clip, and they're getting outscored overall. However, the Athletics are 5-1 when they hit at least two home runs, so their offense can absolutely carry them on any given night.

Who's Hot and Who's Not

Randy Arozarena is a force for Seattle at the plate, hitting .293 with two home runs, 12 walks, and nine RBI. Luke Raley has been on fire over the last 10 games, going 13 for 33 with three doubles, a triple, two home runs, and seven RBI.

Oakland's Shea Langeliers has been putting in work with four doubles, six home runs, and 12 RBI. Jacob Wilson is also swinging it well in recent games, sitting 14 for 44 with two home runs and seven RBI over his last 10.

The Health Report

Seattle's injury list is a concern: Brendan Donovan is day-to-day with a hip issue, while Miles Mastrobuoni (calf), Patrick Wisdom (oblique), and Victor Robles (pectoral) are all on the 10-Day IL. The Mariners also have Carlos Vargas on the 60-Day IL with a lat strain, Bryce Miller on the 15-Day IL with an oblique injury, and Logan Evans out for 60 days with an arm issue.

Oakland will be without Brent Rooker (10-Day IL, oblique) and Gunnar Hoglund (60-Day IL, knee).

Emerson Hancock takes the mound for Seattle with a 2-1 record, a 2.28 ERA, and 25 strikeouts. J.T. Ginn starts for Oakland at 0-0 with a 3.31 ERA. First pitch is Monday night at 9:40 p.m. EDT.

This article was created with AI assistance and reviewed by Seattle On Tap editorial staff. Always verify information with official team sources.