Seattle Mariners vs Baltimore Orioles Starting Lineup — Wednesday, Jun 10, 2026

Seattle Mariners at Baltimore Orioles (2026-06-10). George Kirby vs Brandon Young at Oriole Park at Camden Yards.

George Kirby, the Seattle Mariners' right-handed starter, has compiled a 4.04 ERA and 1.28 WHIP over 78 innings pitched across 13 starts this season, showcasing a solid 7.38 strikeouts per nine innings and an excellent 2.08 walks per nine innings. His recent performance indicates a positive trend with his ERA trending downward, and he has maintained a robust 66.7% quality start percentage, signifying consistent deep outings. Over his last five starts, Kirby has surrendered 1, 4, 3, 2, and 1 earned runs, with four of those outings extending at least six innings. Opposing him for the Baltimore Orioles is right-hander Brandon Young, who, in 9 starts and 49.1 innings, holds a lower season ERA of 3.47 and a 1.34 WHIP. However, Young's control metrics are less sharp with a 3.1 walks per nine innings rate, and his strikeout rate is slightly lower at 6.75 K/9. While his ERA trend is also noted as downward, his significantly lower 16.7% quality start percentage suggests a greater variability in his ability to pitch deep into games. His last five starts show earned run totals of 0, 3, 4, 3, and 2, with innings pitched ranging from 4 to 6.

From a team perspective, the offensive units of both clubs present a similar profile, each registering an identical .718 OPS for the season. The Orioles, however, have been more effective at converting offense into runs, scoring 317 runs compared to the Mariners' 290, despite the Mariners hitting more home runs with 87 to Baltimore's 78. Seattle's pitching staff holds a considerable advantage, posting a collective 3.48 ERA and 1.18 WHIP, complemented by a strong 8.66 strikeouts per nine innings, and has allowed only 63 home runs this season. In contrast, Baltimore's pitching carries a higher 4.60 ERA and 1.41 WHIP, with a lower 7.8 K/9, and has surrendered 77 home runs. Both teams enter this matchup having struggled recently, with both the Mariners and the Orioles holding identical 4-6 records over their last ten contests.

Looking at recent head-to-head history from the 2025 season, the Baltimore Orioles have enjoyed significant success against the Seattle Mariners, winning five of their six encounters. Many of these prior matchups were characterized by relatively low scoring, with final scores like 3-2, 3-4, and 1-0 appearing frequently. The total line for this game is set at 9.0 runs. This figure might reflect an expectation of offensive output that could challenge the Mariners' otherwise strong pitching, particularly given Young's lower quality start rate and the Orioles' higher team ERA which could lead to more runs being scored later in the game by either side. The historical H2H results, however, suggest that lower-scoring games have been common between these two teams.