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George Kirby
SP · 
Seattle Mariners · #68
Bats/ThrowsR/R
Height6' 4"
Weight215 lbs
BirthplaceRye, NY
MLB Debut2021
Draft2019: Rd 1, Pk 20 (SEA)
🪪Bio
Bats/ThrowsR/R
Height6' 4"
Weight215 lbs
BirthplaceRye, NY
MLB Debut2021
Draft2019: Rd 1, Pk 20 (SEA)
📊Season Stats (2026)
ERA4.18
W-L9-11
IP159.1
K133
WHIP1.34
SV0
Full Stat Line
G27
GS27
QS15
HLD0
H177
ER74
HR20
BB37
K/97.51
WAR1.36
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.294
OBP.343
SLG.490
OPS.833
vs Right-Handed Batters
AVG.303
OBP.332
SLG.434
OPS.766
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. TEX
|
5.60 | 17.2 | 12 | 2 | .282 |
vs. HOU
|
4.15 | 17.1 | 15 | 6 | .314 |
vs. MIN
|
1.42 | 12.2 | 8 | 3 | .271 |
vs. BAL
|
4.50 | 12.0 | 15 | 3 | .306 |
vs. LAA
|
2.25 | 8.0 | 7 | 1 | .241 |
vs. PHI
|
1.17 | 7.2 | 9 | 1 | .207 |
vs. ATL
|
2.57 | 7.0 | 5 | 1 | .200 |
vs. OAK
|
4.05 | 6.2 | 5 | 1 | .269 |
vs. CIN
|
0.00 | 6.0 | 6 | 1 | .150 |
vs. CLE
|
1.50 | 6.0 | 6 | 2 | .105 |
vs. KC
|
4.50 | 6.0 | 3 | 0 | .346 |
vs. MIA
|
3.00 | 6.0 | 7 | 0 | .333 |
vs. NYY
|
6.00 | 6.0 | 6 | 3 | .238 |
vs. PIT
|
1.50 | 6.0 | 5 | 2 | .360 |
vs. STL
|
3.00 | 6.0 | 2 | 1 | .227 |
vs. SD
|
9.53 | 5.2 | 6 | 2 | .273 |
vs. ARI
|
6.75 | 5.1 | 4 | 1 | .286 |
vs. BOS
|
9.00 | 5.0 | 2 | 2 | .350 |
vs. TB
|
1.80 | 5.0 | 2 | 2 | .222 |
vs. NYM
|
9.00 | 4.0 | 5 | 1 | .409 |
vs. MIL
|
16.20 | 3.1 | 3 | 2 | .500 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 4.18 | 159.1 | 133 | 37 | .283 |
| Safeco Field | 3.27 | 93.2 | 80 | 20 | .246 |
| Minute Maid Park | 5.59 | 9.2 | 9 | 5 | .357 |
| Busch Stadium II | 3.00 | 6.0 | 2 | 1 | .227 |
| Camden Yards | 4.50 | 6.0 | 10 | 3 | .292 |
| Kauffman Stadium | 4.50 | 6.0 | 3 | 0 | .346 |
| Marlins Park | 3.00 | 6.0 | 7 | 0 | .333 |
| PNC Park | 1.50 | 6.0 | 5 | 2 | .360 |
| Target Field | 3.18 | 5.2 | 5 | 2 | .348 |
| Fenway Park | 9.00 | 5.0 | 2 | 2 | .350 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 4.05 | 6.2 | 5 | 1 | .269 |
| Last 15 Days | 4.19 | 19.1 | 16 | 4 | .267 |
| Last 30 Days | 6.59 | 27.1 | 21 | 9 | .325 |
| March | 1.50 | 6.0 | 6 | 2 | .105 |
| April | 3.23 | 39.0 | 28 | 9 | .260 |
| May | 4.97 | 29.0 | 25 | 6 | .287 |
| June | 3.90 | 30.0 | 32 | 7 | .320 |
| July | 5.06 | 16.0 | 16 | 1 | .286 |
| August | 4.96 | 32.2 | 21 | 11 | .298 |
| September | 4.05 | 6.2 | 5 | 1 | .269 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 738 | 28.7% | 35.4% | 32.5% | 24.6% | .243 | .347 | .347 |
| Sweeper | 721 | 28.1% | 32.9% | 40.9% | 24.6% | .257 | .314 | .307 |
| Sinker | 531 | 20.7% | 46.0% | 15.7% | 14.1% | .326 | .393 | .291 |
| Knuckle Curve | 265 | 10.3% | 30.9% | 51.8% | 24.1% | .444 | .467 | .331 |
| Changeup | 172 | 6.7% | 24.4% | 30.9% | 27.3% | .262 | .533 | .446 |
| Cutter | 114 | 4.4% | 34.2% | 28.2% | 35.9% | .238 | .555 | .412 |
| Splitter | 28 | 1.1% | 42.9% | 33.3% | 20.0% | .375 | .313 | .288 |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| 4-Seam Fastball | 436 | 96.7 | 2,281 | +13.1" | +0.8" | 6.6 |
| Sweeper | 379 | 87.6 | 2,417 | -2.8" | -0.9" | 6.6 |
| Sinker | 315 | 96.7 | 2,327 | +7.6" | +1.4" | 6.6 |
| Knuckle Curve | 163 | 84.2 | 2,398 | -13.4" | -0.7" | 6.6 |
| Changeup | 105 | 88.4 | 1,476 | +3.3" | +1.2" | 6.8 |
| Cutter | 90 | 92.6 | 2,271 | +8.3" | +0.0" | 6.6 |
| Slider | 45 | 86.6 | 2,397 | -5.2" | -1.1" | 6.6 |
| Splitter | 28 | 87.0 | 1,064 | +0.5" | +0.7" | 6.7 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Friday, September 11, 2026 |
OAK
|
5-6 | 6.0 | 9 | 4 | 2 | 5 | 4.25 | 101 | — |
| L | Saturday, September 5, 2026 |
OAK
|
6-2 | 6.2 | 7 | 3 | 1 | 5 | 4.18 | 100 | L |
| L | Monday, August 31, 2026 |
BOS
|
8-9 | 5.0 | 7 | 5 | 2 | 2 | 4.19 | 86 | — |
| W | Tuesday, August 25, 2026 |
PHI
|
1-4 | 7.2 | 6 | 1 | 1 | 9 | 4.02 | 92 | W |
| L | Thursday, August 20, 2026 |
MIL
|
4-7 | 3.1 | 9 | 6 | 2 | 3 | 4.18 | 84 | L |
| L | Friday, August 14, 2026 |
HOU
|
7-10 | 4.2 | 8 | 5 | 3 | 2 | 3.89 | 99 | — |
| L | Saturday, August 8, 2026 |
TB
|
3-2 | 5.0 | 4 | 1 | 2 | 2 | 3.68 | 99 | — |
| W | Sunday, August 2, 2026 |
MIN
|
6-7 | 7.0 | 5 | 0 | 1 | 3 | 3.76 | 94 | — |
| L | Monday, July 27, 2026 |
TEX
|
3-7 | 4.0 | 7 | 7 | 0 | 3 | 3.98 | 66 | L |
| W | Monday, July 20, 2026 |
CIN
|
0-8 | 6.0 | 3 | 0 | 1 | 6 | 3.57 | 80 | W |
👥Team — Seattle Mariners
| Player | Pos | Key Stat |
|---|---|---|
| Josh Naylor | 1B | .265 AVG |
| Cole Young | 2B | .248 AVG |
| Brendan Donovan | 3B | .277 AVG |
| Miles Mastrobuoni | 3B | .192 AVG |
| Leo Rivas | 3B | 63.00 ERA |
| Weston Wilson | 3B | 18.90 ERA |
| Patrick Wisdom | 3B | .106 AVG |
| Mitch Garver | C | .175 AVG |
| Jhonny Pereda | C | 54.00 ERA |
| Cal Raleigh | C | .183 AVG |
| Stuart Fairchild | CF | .158 AVG |
| Julio Rodriguez | CF | .239 AVG |
| Dominic Canzone | DH | .254 AVG |
| Taylor Ward | DH | .225 AVG |
| Connor Joe | First Baseman | .179 AVG |
| Randy Arozarena | LF | .272 AVG |
| Matt Brash | Relief Pitcher | 0.54 ERA |
| Lazaro Montes | RF | .227 AVG |
| Luke Raley | RF | .225 AVG |
| Victor Robles | RF | 27.00 ERA |
| Eduard Bazardo | RP | 3.90 ERA |
| Cooper Criswell | RP | 3.44 ERA |
| Nick Davila | RP | 4.94 ERA |
| Jhonathan Diaz | RP | 6.75 ERA |
| Seranthony Dominguez | RP | 4.17 ERA |
| Jose Ferrer | RP | 3.77 ERA |
| Hoby Milner | RP | 4.03 ERA |
| Andres Munoz | RP | 3.98 ERA |
| Michael Rucker | RP | 6.69 ERA |
| Josh Simpson | RP | 9.82 ERA |
| Gabe Speier | RP | 2.61 ERA |
| Troy Taylor | RP | 12.15 ERA |
| Carlos Vargas | RP | 3.38 ERA |
| Cole Wilcox | RP | 4.00 ERA |
| Kade Anderson | SP | 4.29 ERA |
| Logan Gilbert | SP | 3.72 ERA |
| Emerson Hancock | SP | 3.57 ERA |
| Bryce Miller | SP | 4.22 ERA |
| Bryan Woo | SP | 4.03 ERA |
| Michael Arroyo | SS | .000 AVG |
| J.P. Crawford | SS | .219 AVG |
| Colt Emerson | SS | .190 AVG |
| Brock Rodden | SS | .226 AVG |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for George Kirby and every MLB game — available in the BlowOutAlert workspace.