The Chicago Cubs came into T-Mobile Park on Sunday, August 23, 2026, and delivered a thorough dismantling of the Seattle Mariners, 19-2, in a nine-inning game that turned ugly early and never recovered. Four Cubs home runs, 17 hits, and a Mariners pitching staff that issued walks in bunches added up to one of the more lopsided results Seattle has seen in recent memory. Randy Arozarena's solo shot was the lone highlight in an otherwise forgettable afternoon for the home side.

Cubs Offense Overwhelms Seattle's Pitching Staff

Chicago got contributions up and down the lineup. Pedro Ramírez was the standout, going 3-for-6 with a home run and five RBI. Ian Happ matched him in the RBI column, going 2-for-4 with a homer and five runs driven in. Pete Crow-Armstrong added a 2-for-4 line with a home run and three RBI, and Michael Conforto chipped in a home run of his own in limited at-bats. Seiya Suzuki and Tyrone Taylor each collected two hits to keep the Cubs' lineup relentless.

By the time it was over, Chicago had sent four balls over the fence and produced a 17-run margin — a result that speaks for itself.

Bryce Miller Takes the Loss After Difficult Outing

Bryce Miller started for Seattle and ran into serious trouble, allowing six earned runs in 4.1 innings. The walk column was the story: Miller issued seven free passes, which kept the Cubs' lineup stocked with baserunners all afternoon. He struck out five, but the damage was already done each time Chicago's hitters capitalized on the base traffic.

The bullpen offered no relief. José A. Ferrer worked 1.2 innings and gave up one earned run. Michael Rucker was handed the ball for 0.2 innings and was touched for seven earned runs on four hits and two walks. Jhonny Pereda allowed two more in a third of an inning, and Weston Wilson surrendered three runs on five hits over the final frame. The Mariners used six pitchers in all, and none of them managed to slow the Cubs' attack for long.

Aaron Civale earned the win for Chicago, tossing four scoreless innings of one-hit ball after Shota Imanaga gave up Seattle's two runs in two innings of work.

Mariners Offense Manages Little Against Cubs Pitching

Seattle's two runs came in early, but the offense had virtually nothing to add after that. Arozarena went 1-for-4 with a solo home run and one RBI — the brightest individual moment for the Mariners on the day. Josh Naylor was the only other Seattle hitter to make real contact, going 2-for-4, but neither of his hits produced a run. Chicago's pitching held Seattle to a total of two runs over nine innings, with Civale, Trent Thornton, Caleb Thielbar, and Carson Kelly all posting scoreless innings in relief of Imanaga.

Key Performances at a Glance

Chicago Cubs

  • Pedro Ramírez: 3-for-6, 1 HR, 5 RBI
  • Ian Happ: 2-for-4, 1 HR, 5 RBI
  • Pete Crow-Armstrong: 2-for-4, 1 HR, 3 RBI
  • Michael Conforto: 1-for-2, 1 HR, 1 RBI
  • Seiya Suzuki: 2-for-3
  • Tyrone Taylor: 2-for-4
  • Aaron Civale (W): 4.0 IP, 1 H, 0 ER, 2 K

Seattle Mariners

  • Randy Arozarena: 1-for-4, 1 HR, 1 RBI
  • Josh Naylor: 2-for-4
  • Bryce Miller (L): 4.1 IP, 2 H, 6 ER, 7 BB, 5 K

What's Next for the Mariners

Seattle moves forward from a difficult result and will need to reset quickly. The pitching staff — particularly the bullpen — took significant damage in this one, and the walk issues that plagued Miller will need to be addressed. The Mariners have to find a way to put Sunday behind them and come out sharper in their next series.