George Kirby Fantasy Stats

Seattle Mariners right-hander George Kirby could be moved before the August 3 trade deadline, according to Jeff Passan of ESPN. Multiple teams have engaged the Mariners on a potential deal for Kirby. The Mariners are also listening to offers for starters Emerson Hancock and Luis Castillo. Kirby owns a 3.98 ERA, 1.30 WHIP, and 107 strikeouts across 120 innings. The 28-year-old was rocked for seven earned runs, serving up four long balls across just four innings in his last start on Monday. Before that start, Kirby posted a 1.73 ERA in his previous four starts before Monday's implosion. His fantasy value might change a little if he's traded but should remain a viable starter regardless of where he lands. Kirby is scheduled to start on Sunday against the Twins, but the Mariners could hold him back until after the MLB deadline. Stay tuned.

Across 110 innings (18 starts) in 2026, Seattle Mariners starting pitcher George Kirby has recorded a 7-8 record with a 3.76 ERA, 1.32 WHIP, and 98 strikeouts. The 28-year-old's trademark command remains strong, as he owns a 5.3% walk rate on the year. However, Kirby's strikeout rate has dipped to 21.5% after he posted a career-best 26.1% strikeout rate in 2025. Still, Kirby's elevated WHIP and middling ERA are mostly symptoms of poor batted-ball luck. Opposing batters own a .343 batting average on balls in play against Kirby this season, well above his career mark of .310. Kirby's current strikeout rate limits his fantasy ceiling, but he's shown the ability to miss more bats in the past. If Kirby continues to limit home runs (0.90 HR/9) and sees some BABIP regression, he could emerge as a second-half riser.

Seattle Mariners right-hander George Kirby may have taken his sixth loss of the season in Wednesday's 7-2 loss to the Baltimore Orioles at Camden Yards, but he still pitched very well for his fantasy managers. Kirby picked up a quality start by allowing three earned runs on seven hits (one homer) while walking three and striking out a season-high 10 in six innings of work. Everything was going well for Kirby through five shutout innings before he gave up all three runs on three extra-base hits in the sixth frame. He has now been handed a loss in four of his last five outings, but Wednesday's outing hopefully will help the 28-year-old turn things around after he had an ERA over 7.00 in his last four starts. After his strong outing on Wednesday, Kirby now has a 4.07 ERA on the season and 1.31 WHIP with 74 strikeouts and 21 walks in 84 innings across his 14 starts for the M's. The Orioles aren't the best matchup in baseball, but fantasy managers should be willing to roll the dice and start Kirby again for his rematch with Baltimore next week.

Seattle Mariners starting pitcher George Kirby didn't have his best stuff working for him during Wednesday's outing against the Minnesota Twins. Kirby allowed two earned runs on eight hits with five strikeouts across 5.2 innings of work during Wednesday's no-decision. He was on the hook for the loss until the Mariners' offense came alive late in the game. The right-hander will take a 3.00 ERA, 1.13 WHIP, and a 34:11 K:BB ratio into his next start against the Atlanta Braves. Kirby has allowed seven or more hits in three of his last four outings. He has been able to work around the damage and allowed two runs or less in all of those outings. Fantasy managers should keep riding with Kirby despite his lack of swing-and-miss stuff.

All in all, Seattle Mariners starting pitcher George Kirby has been one of MLB's most consistent right-handers since making his MLB debut in 2022. However, the 28-year-old had his first taste of real adversity in 2025. Kirby opened the year on the Injured List due to a shoulder issue that ultimately delayed his season debut until late May. Upon his return, Kirby pitched to a 10-8 record with a 4.21 ERA, 1.19 WHIP, and 137 strikeouts in 126 innings (23 starts). Kirby's strikeout rate soared to a career-best 26.1%, but he also allowed the highest opponent hard-hit rate (43.9%) of his career. Still, there's plenty of reason to think Kirby can regain his top-end form in 2026. While his walk rate spiked from 3.0% in 2024 to 5.5% in 2025, Kirby remains one of baseball's best command artists and could easily return to his career WHIP mark of 1.11. If he can hold some of the strikeout gains he made in 2025 while seeing a bit more batted ball luck, Kirby could post an ace-level season for fantasy managers.

The Seattle Mariners and right-hander George Kirby have agreed to a $6.55 million contract for 2026 to avoid arbitration, according to MLB insider Robert Murray. In 2025, Kirby went 10-8 with a 4.21 ERA (3.39 SIERA) while recording 137 strikeouts in 126 innings. Most notably, the 27-year-old, long known as a command-focused pitcher, posted a career-high 26.1% strikeout rate last year. Although right-shoulder inflammation sidelined him for nearly three months at the start of the year, he is expected to be fully healthy for the 2026 season. From a fantasy perspective, Kirby has the potential to be a top-10 starting pitcher if he can remain healthy and maintain a strikeout rate above 25%. That said, to guard against any lingering shoulder issues, it would be wise to hedge your bet by drafting a few more reliable starting pitchers.

Seattle Mariners right-hander George Kirby will start the fifth and deciding game in the American League Division Series against the Detroit Tigers at T-Mobile Park on Friday, according to Shannon Drayer. Kirby will be opposed by Cy Young candidate Tarik Skubal for Detroit. The 27-year-old Kirby is looking for a second straight strong performance to close out the series after he held the Tigers to two earned runs while striking out eight over five innings in Game 1 of the series. Kirby also faced Detroit back on July 12 and didn't fare as well, allowing four earned runs on five hits (one homer) while walking three and striking out six in five innings in a game that he ended up winning. Kirby will have to be on his game against the dominant Skubal, but he definitely has the skills to do so. If Kirby isn't on his game, right-hander Luis Castillo is probably available early in the game to help pick up the slack.

Seattle Mariners starting pitcher George Kirby was dominant on Sunday in an 11-2 win over the Angels, allowing two runs on three hits and no walks with 14 strikeouts over 6 1/3 innings. The ace isn't typically known as a strikeout pitcher, but this is amazingly the second time this season that he has punched out 14 in a game, with the first also being against the Angels on June 8. A few bad starts have inflated the 27-year-old's ERA to 4.46 on the season, but he figures to once again be one of the more reliable pitchers in fantasy for 2026.

Seattle Mariners right-hander George Kirby tossed a gem in a 1-0 win over the Pittsburgh Pirates on Sunday. Kirby threw 6 1/3 scoreless innings while allowing four hits, walking none, and striking out nine batters to earn the win. The veteran hurler led the game with 19 swinging strikes while improving his record to 3-4, to go along with a 4.22 ERA, 1.10 WHIP, and 50 strikeouts across 49 innings of work. Kirby struggled in his first two starts of the season upon being activated from the injured list in late May but has been excellent since, posting a 2.68 ERA over his past seven starts. He will be a solid fantasy starting option in his next start, which will come on Saturday against the Detroit Tigers.

Seattle Mariners starting pitcher George Kirby was dominant on Sunday in a 3-2 win against the Angels, striking out 14 batters over seven innings. He allowed two runs on two hits, which came on a Taylor Ward home run in the fourth inning. This start certainly put any worries to rest about Kirby taking a step back following his injury, as this was the most strikeouts he's tallied in a game in his career. The matchup against the Angels certainly helped, but it's clear that the 27-year-old is ready to step back into his role as a real-life and fantasy ace. He'll look to keep things rolling in his next start, which is set to be another good matchup against the Guardians.