Baltimore – George Kirby pitched seven innings of three-hit ball, and Josh Naylor drove in the game’s only run as the Seattle Mariners defeated the Baltimore Orioles 1-0 on August 12, 2025, at Oriole Park at Camden Yards. The victory extended Seattle’s winning streak to eight games and moved the Mariners into a tie for first place in the American League West with the Houston Astros. Baltimore fell to 53-66, remaining in fifth place in the AL East amid a three-game skid.
The Orioles Mariners recap highlights a classic pitchers’ duel, with starters Kirby and Dean Kremer dominating. Kirby, improving to 8-5 with a 3.71 ERA, struck out seven without issuing a walk, allowing just one runner to reach scoring position. He faced 23 batters, inducing eight groundouts and two flyouts on 87 pitches, 57 for strikes. Kremer, dropping to 8-9 with a 4.17 ERA, went eight innings, yielding five hits and one run while striking out six. His performance marked one of his longest outings of the season, but a first-inning lapse proved costly.
Seattle scored in the opening frame. Randy Arozarena led off with a single, stole second – his 23rd theft of the year – and crossed the plate on Naylor’s two-out single to right field. Naylor’s 67th RBI of the season provided all the offense the Mariners needed. Julio Rodríguez walked and stole second but was caught stealing later, one of two Mariners baserunners erased on the paths. The Mariners finished 1-for-2 with runners in scoring position, stranding three.
Baltimore’s offense managed five hits but went 0-for-2 with runners in scoring position, leaving five on base. Gunnar Henderson doubled in the fourth for the Orioles’ best chance, but Adley Rutschman struck out to end the threat. Ryan Mountcastle grounded out with runners on in the sixth, and the team hit into a double play in the second. Jackson Holliday, Jordan Westburg and Rutschman each collected a hit, but the lineup could not string together threats against Seattle’s staff.
Relief efforts preserved the shutout. Eduard Bazardo handled two-thirds of an inning in the eighth, allowing one hit. Gabe Speier retired the only batter he faced, and Andrés Muñoz earned his 28th save despite a ninth-inning delay for on-mound attention. Muñoz walked Henderson but induced groundouts from Holliday and Mountcastle around a Westburg strikeout and Rutschman single. On the Orioles side, Rico Garcia pitched a scoreless ninth
This Orioles Mariners recap underscores Seattle’s surge. The Mariners, at 67-53, have won 12 of their last 15, bolstered by a rotation featuring Kirby, Logan Gilbert and others. Kirby’s outing lowered his ERA and highlighted his command, with no walks in his last three starts. Naylor, acquired midseason, has provided consistent production at first base, batting .291 with steady power.
For Baltimore, the loss extended a rough stretch. The Orioles have been shut out 13 times in 2025, their most since 2018 when they finished 47-115. Injuries have plagued the roster, including elbow issues for pitchers Kyle Bradish and Tyler Wells, both on the 60-day injured list recovering from surgeries. Position players like Jorge Mateo and Ryan Mountcastle have also spent time sidelined. Kremer’s solid effort offered a bright spot, as he has posted a sub-4.00 ERA in his last 10 starts
Standings implications loom large. Seattle’s tie with Houston sets up a tight AL West race, with the Mariners holding the tiebreaker. Baltimore, 13 games under .500, focuses on rebuilding, trading veterans at the deadline for prospects. Upcoming games include Seattle facing Baltimore again on August 13, with Gilbert opposing Trevor Rogers.
