Seattle Mariners Clinch Playoff Berth by Defeating Colorado Rockies 4-3

The Seattle Mariners clinched a playoff berth for just the sixth time in franchise history, defeating the Colorado Rockies 4-3 at T-Mobile Park on September 23, 2025. The decisive moment came in the bottom of the eighth inning, when Josh Naylor delivered a two-out, bases-clearing double off Rockies reliever Victor Vodnik, turning a 3-1 deficit into a 4-3 lead. Naylor’s clutch hit sent Luke Raley, J.P. Crawford, and Julio Rodríguez home, sparking celebrations throughout the stadium and guaranteeing Seattle’s postseason spot. Seattle entered the game knowing a win, combined with a New York Yankees victory over the Chicago White Sox, would clinch their playoff spot. While the Mariners’ bats were quiet for most of the night, striking out 15 times, Naylor’s double proved decisive. The Yankees delivered their part, and Naylor ensured Seattle capitalized on the opportunity. The game was a pitching duel early on. Colorado rookie McCade Brown set a new career-high with 10 strikeouts over five innings, allowing just two hits and one run—a solo homer by Dominic Canzone in the fifth, his 11th of the season. It was only the second time this year a Rockies pitcher reached double-digit strikeouts, following Kyle Freeland’s 10 K’s against the Padres on September 5. For Seattle, Bryce Miller allowed three runs on five hits across six innings, but kept his team within striking distance. The Rockies built a 3-1 lead with RBI hits from Kyle Karros and Ezequiel Tovar, but could not hold off the Mariners’ late surge. In the eighth, Rockies reliever Juan Mejia loaded the bases by hitting two batters and walking another. After Vodnik entered and struck out two, Naylor came through with his game-changing double. Andrés Muñoz closed out the win with a perfect ninth inning, earning his 38th save of the season and sealing the Mariners’ spot in the playoffs. Seattle’s win was their 15th in 16 games, underscoring their status as one of MLB’s hottest teams down the stretch. Since the All-Star break, the Mariners boast a league-best 24-6 home record. The team’s recent acquisitions, including Naylor and Eugenio Suárez from the Arizona Diamondbacks, have bolstered their postseason ambitions. They now turn their attention to the AL West title, which could be clinched as early as Wednesday. The Rockies will send Tanner Gordon (6-7, 6.00 ERA) to the mound in the series finale, while the Mariners counter with Luis Castillo (10-8, 3.63 ERA). For full stats and live updates, visit the FOX 13 Seattle recap or follow the official @Mariners Twitter account.