2025 Stats
W-L
10-8
ERA
4.21
WHIP
1.19
K
137
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
For the second straight year, Kirby had the lowest walk rate among qualified starters. He got off to a rocky start with an eight-run blowup in his second outing of the year and a 4.33 ERA through his first 11 starts. However, Kirby then turned in nine consecutive quality starts from June 9 to July 26. Water usually finds its level, and Kirby's 3.53 ERA at the end of the year was pretty much right in line with the underlying skills (3.58 xFIP, 3.56 SIERA). He's reached 190 innings in back-to-back seasons, but that is likely out of reach for 2025 given Kirby will start the year on the year with a shoulder issue. The other problem is that he still has not shown any growth with his strikeout rate, which has hovered right around 23 percent in each of his three seasons in the majors so far. It's not out of the question that the right pitch-mix tweak could unlock another level with the punchouts, but that's purely conjecture at this point. Read Past Outlooks

One mistake in no-decision
Kirby did not factor into the decision in Saturday's extra-innings loss to the Tigers in Game 1 of the ALDS. He allowed two runs on six hits and one walk while striking out eight over five innings.
Analysis
Kirby was cruising and appeared to have some of his best command all season, but Kerry Carpenter turned a one-run Detroit deficit into a one-run Tigers lead with his home run with two outs in the fifth inning. The 27-year-old Kirby induced 16 swinging strikes on 94 pitches, extending an impressive run of dominance from September (31 strikeouts in his final 17.1 regular-season innings). He's not assured of another start this postseason, but Kirby lines up to toe the rubber at home Friday in Game 5.
Kirby was cruising and appeared to have some of his best command all season, but Kerry Carpenter turned a one-run Detroit deficit into a one-run Tigers lead with his home run with two outs in the fifth inning. The 27-year-old Kirby induced 16 swinging strikes on 94 pitches, extending an impressive run of dominance from September (31 strikeouts in his final 17.1 regular-season innings). He's not assured of another start this postseason, but Kirby lines up to toe the rubber at home Friday in Game 5.
Pitching Stats
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2025 MLB Game Log
2025
2024
2023
2022
2020
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
91
Last 10 Games
90
Last 5 Games
93
How many pitches does George Kirby generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does George Kirby generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-6%
BAA vs RHP
2025
-73%
BAA vs RHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2023vs Left | .254 | 176 | 26 | 174 | 23 | |||
Since 2023vs Right | .239 | 183 | 17 | 192 | 22 | |||
2025vs Left | .417 | 6 | 0 | 5 | 1 | |||
2025vs Right | .111 | 2 | 1 | 1 | 0 | |||
2024vs Left | .257 | 88 | 15 | 86 | 12 | |||
2024vs Right | .234 | 91 | 8 | 95 | 10 | |||
2023vs Left | .246 | 82 | 11 | 83 | 10 | |||
2023vs Right | .247 | 90 | 8 | 96 | 12 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2023
-31%
ERA at Home
2025
-30%
ERA at Home
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2023Home | 2.89 | 0.96 | 180.2 | 9.4 | 1.0 | ||||
Since 2023Away | 4.21 | 1.18 | 265.1 | 8.0 | 1.2 | ||||
2025Home | 3.60 | 1.40 | 5.0 | 14.4 | 1.8 | ||||
2025Away | 5.16 | 1.28 | 59.1 | 9.7 | 1.8 | ||||
2024Home | 3.06 | 1.01 | 82.1 | 9.2 | 1.1 | ||||
2024Away | 3.89 | 1.11 | 108.2 | 7.9 | 1.1 | ||||
2023Home | 2.70 | 0.89 | 93.1 | 9.3 | 1.0 | ||||
2023Away | 3.98 | 1.18 | 97.1 | 7.0 | 0.8 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does George Kirby compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
4.72K/9
9.8BB/9
2.1HR/9
1.1Fastball
97.1 mphERA
4.21WHIP
1.19BABIP
.327GB/FB
1.50Left On Base
69.8%Exit Velocity
82.5 mphBarrels/BBE
4.8%Spin Rate
2223 rpmBalls Hit 95+ MPH
24.2%Swinging Strike
0.0%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2024
2023
2022
2021
2020
After being highly touted as a prospect, Kirby showed great promise in his debut season in 2022. The right-hander took his game to another level in his sophomore campaign, shaving his walk rate from 4.1% to a minuscule 2.5%, the lowest among qualified starters. Kirby has already made history multiple times with his strike-throwing; he tossed 24 consecutive strikes at one point as a rookie and now owns the record for the most quality starts with zero walks (11) by a pitcher age 25 or younger. Kirby lowered his WHIP from 1.21 as a rookie to 1.04 last season while adding more than 60 innings to his 2022 total. His five-pitch mix would seem to give him some room for growth in the strikeout department (career 23.5 K%), but until we see that growth, Kirby should probably remain just outside the fantasy ace tier.
More Fantasy News

Fans 10 in Friday's loss
Kirby (10-8) took the loss Friday, giving up two runs on three hits and one walk over five innings as the Mariners fell 3-2 to the Dodgers. He struck out 10.
Analysis
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Sharp in 10th victory
Kirby (10-7) earned the win Saturday at Houston, pitching six scoreless innings while allowing five hits and no walks. He struck out seven.
Analysis
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Fans 14 in win over Angels
Kirby (9-7) allowed two runs on three hits and struck out 14 without walking a batter over 6.1 innings to earn the win Sunday over the Angels.
Analysis
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Struggles again in no-decision
Kirby took a no-decision Tuesday against the Cardinals, allowing three runs on seven hits and two walks in four innings. He struck out two.
Analysis
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Overwhelmed by Rays in early exit
Kirby (8-7) was handed the loss against the Rays on Wednesday, allowing eight runs (seven earned) on 10 hits with one strikeout across two innings.
Analysis
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Latest Fantasy Rumors

Not untouchable?
Kirby could be included as part of a package for Shohei Ohtani, speculates Jim Bowden of The Athletic.
Analysis
Kirby, a 2019 first-round pick, owns a 3.43 ERA this season and a 3.41 ERA across 43 career starts. His .266 expected batting average is subpar, but he counters that with excellent control that's evidenced by his 2.4 percent walk rate, which is the best mark among all qualifiers. He's a logically desirable target in the context of an Ohtani blockbuster.
Kirby, a 2019 first-round pick, owns a 3.43 ERA this season and a 3.41 ERA across 43 career starts. His .266 expected batting average is subpar, but he counters that with excellent control that's evidenced by his 2.4 percent walk rate, which is the best mark among all qualifiers. He's a logically desirable target in the context of an Ohtani blockbuster.