Kirby (1-0) earned the win in Friday's 1-0 victory over the Red Sox, allowing just two hits and two walks while striking out eight over 6.2 scoreless innings.
Kirby settled in after issuing a pair of walks in the first inning, allowing just two baserunners over his final 5.2 frames en route to a 1-0 victory. The 26-year-old right-hander went 13-10 last year with a 3.35 ERA, 1.04 WHIP and a stellar 172:19 K:BB across 31 starts. Kirby's next start is expected to come Tuesday in the Mariners' home matchup with the Guardians.