Seattle Mariners starting pitcher George Kirby (68) throws against the Houston Astros during the second inning at T-Mobile Park in 2024. John Froschauer-Imagn Images

Here's How Seattle Mariners' George Kirby Fared in Second Rehab Start

Originally posted on Seattle Mariners on SI
By Brady Farkas | Last updated May 11, 2025 9:45 AM ET

Pitching for the Triple-A Tacoma Rainiers on Saturday night, Seattle Mariners starting pitcher George Kirby lasted three innings, throwing 54 pitches, an improvement from the 42 he threw in his first rehab start last Sunday.

In total, Kirby gave up three runs on four hits against the Sacramento River Cats. He surrendered two walks and had five strikeouts. The @MiLBMariners account reports he was throwing between 95-97 MPH. He threw 36 of his 54 pitches for strikes.

Final line for George Kirby in his 2nd rehab start:
3IP, 4H, 3R, 2BB, 5K, 54 pitches, 36 strikes. Fastball 95-97. pic.twitter.com/ZWXqQ1JUme
— Mariners Minors (@MiLBMariners) May 11, 2025

Kirby is expected to make one more rehab start before joining the M's rotation, and presumably, the team would like to see him get to at least 65-70 pitches before he gets back to Seattle. He's been recovering from shoulder inflammation that shut him down on March 7 during spring training.

Getting Kirby back will be extremely beneficial for Seattle, who is also out All-Star Logan Gilbert. Seattle hopes to get him back sometime in early to mid-June.

An All-Star in 2023, Kirby is 35-26 lifetime with a 3.43 ERA. He went 14-11 a season ago.

The Mariners enter play on Sunday on the heels of a two-game losing streak. Having seen their nine consecutive series win streak end on Saturday, they'll try to avoid the sweep against the Toronto Blue Jays.

First pitch will come up at 1:10 p.m. PT as Bryce Miller will look to right the ship on the mound. He'll be opposed by the newly-signed Jose Urena.

The Mariners will start a new series with the New York Yankees on Monday night at T-Mobile Park.

This article first appeared on Seattle Mariners on SI and was syndicated with permission.

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