George Kirby
Bats R Throws R6'4" 215 lbBorn 1998 Rye, USADebut 2022Team SEA1x All-StarDraft 2016 R32 #970 New York Mets, Rye HSContract 1 y/$6.55M (26) 2026: $6,550,000
Projections
| Season | BF | K% | BB% | HR% | 1B% | XBH% | PITCH+ |
|---|
| 2026 | 555 | 22.3 | 4.5 | 3.14 | 22.8 | 6.78 | 102.6 |
| 2027 | | | | | | | 102.2 |
| 2028 | | | | | | | 101.5 |
Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.
Most similar through age 27
His ten closest age-27 comparables averaged 98 PITCH+ the next season; 9 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.
Pitching
| Year | Team | W | L | ERA | G | GS | SV | IP | BF | HR | BB | SO | PITCH+ |
|---|
| 2027 proj | | | | | | | | | 555 | | | | 102.2 | | |
| 2026* | | | | | | | | | 567 | | | | 96.0 | 96.6 | 92.6 |
| 2025 | SEA | 10 | 8 | 4.21 | 23 | 23 | 0 | 126.0 | 524 | 15 | 29 | 137 | 101.4 | 97.2 | 98.6 |
| 2024 | SEA | 14 | 11 | 3.53 | 33 | 33 | 0 | 191.0 | 778 | 22 | 23 | 179 | 106.8 | 98.1 | 104.9 |
| 2023 | SEA | 13 | 10 | 3.35 | 31 | 31 | 0 | 190.7 | 757 | 22 | 19 | 172 | 109.3 | 100.0 | 109.3 |
| 2022 | SEA | 8 | 5 | 3.39 | 25 | 25 | 0 | 130.0 | 542 | 13 | 22 | 133 | 101.0 | 97.5 | 98.4 |
| Career | | 45 | 34 | 3.58 | 112 | 112 | 0 | 637.7 | 2601 | 72 | 93 | 621 | 105.2 | | 103.6 |
Fielding
| Year | Team | Pos | G | Inn | PO | A | E | DP | Fld% | Runs saved |
|---|
| 2025 | SEA | P | 23 | 126 | 12 | 7 | 0 | 0 | 1.000 | -1.8 |
| 2024 | SEA | P | 33 | 191 | 11 | 9 | 1 | 1 | 0.952 | -1.8 |
| 2023 | SEA | P | 31 | 191 | 18 | 12 | 0 | 1 | 1.000 | +0.0 |
| 2022 | SEA | P | 25 | 130 | 7 | 10 | 0 | 1 | 1.000 | -1.7 |
Runs saved covers the Statcast era; for catchers it includes framing.
Minor leagues
| Year | Level | Team | Side | PA / BF | Line | AVG / ERA | OPS |
|---|
| 2025 | AAA | Tacoma Rainiers | Pit | 45 | 10.0 IP, 29% K | 7.20 | |
| 2022 | AA | Arkansas Travelers | Pit | 93 | 24.2 IP, 34% K | 1.86 | |
| 2021 | AA | Arkansas Travelers | Pit | 110 | 26.0 IP, 25% K | 2.77 | |
| 2021 | A+ | Everett AquaSox | Pit | 164 | 41.2 IP, 32% K | 2.40 | |
Splits
| Year | vs LHP | vs RHP | Home | Away |
|---|
| 2026 | 0.342 | 0.322 | 0.302 | 0.371 |
| 2025 | 0.324 | 0.285 | 0.284 | 0.330 |
| 2024 | 0.324 | 0.274 | 0.271 | 0.317 |
| 2023 | 0.294 | 0.293 | 0.256 | 0.327 |
| 2022 | 0.251 | 0.374 | 0.311 | 0.308 |
wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.
Postseason pitching
| Year | W | L | ERA | G | GS | SV | IP | H | HR | BB | SO | WHIP |
|---|
| 2025 | 0 | 1 | 6.00 | 4 | 4 | 0 | 18.0 | 21 | 4 | 4 | 21 | 1.39 |
| 2022 | 0 | 0 | 0.00 | 2 | 1 | 1 | 8.0 | 6 | 0 | 1 | 6 | 0.88 |
| Career | 0 | 1 | 4.15 | 6 | 5 | 1 | 26.0 | 27 | 4 | 5 | 27 | 1.23 |