George Kirby
Pitcher · Career Stats, Bio & Records (2022-2026)
George Kirby is a pitcher who has played in Major League Baseball since 2022 for the Seattle Mariners, a span of 5 seasons. Across 142 career appearances, he has gone 54-45 with a 3.74 ERA and 769 strikeouts. George Kirby is an All-Star. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 14778.2.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
- Position
- Pitcher
- Bats / Throws
- R / R
- Height / Weight
- 6'4" / 215 lb
- MLB Debut
- 2022-05-08
- Awards
- All-Star
- Jersey
- #68
Full name: George Joseph Kirby
Season-by-Season Pitching
Click a stat to plot it across every season.
| Year | Team | Lg | W | L | G | GS | CG | SHO | SV | IP | H | ER | BB | SO | ERA | Lg ERA | Pitcher PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | SEA | AL | 8 | 5 | 25 | 25 | 0 | 0 | 0 | 130.0 | 135 | 49 | 22 | 133 | 3.39 | 3.97 (+15%) | 3266.8 |
| 2023 | SEA | AL | 13 | 10 | 31 | 31 | 1 | 0 | 0 | 190.2 | 179 | 71 | 19 | 172 | 3.35 | 4.33 (+23%) | 4891.8 |
| 2024 | SEA | AL | 14 | 11 | 33 | 33 | 0 | 0 | 0 | 191.0 | 181 | 75 | 23 | 179 | 3.53 | 4.08 (+13%) | 4056.3 |
| 2025 | SEA | AL | 10 | 8 | 23 | 23 | 0 | 0 | 0 | 126.0 | 121 | 59 | 29 | 137 | 4.21 | 4.16 (-1%) | 2563.3 |
| 2026 | SEA | AL | 9 | 11 | 30 | 30 | 1 | 0 | 0 | 174.2 | 197 | 84 | 47 | 148 | 4.33 | 4.18 (-4%) | - |
| Career · 5 seasons | 54 | 45 | 142 | 142 | 2 | 0 | 0 | 812.1 | 813 | 338 | 140 | 769 | 3.74 | — | 14,778 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Season-by-Season Batting
Click a stat to plot it across every season.
| Year | Team | Lg | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | Lg AVG | Lg OBP | Lg SLG | Lg OPS | PIV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | SEA | AL | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2023 | SEA | AL | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2024 | SEA | AL | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| 2025 | SEA | AL | 23 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | — | — | — | — | 0.0 |
| Career · 4 seasons | 112 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — | — | 0 | ||
Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.
Postseason Statistics
Playoff Career Batting
Playoff Batting by Year
| Year | Round | Team | G | AB | R | H | 2B | 3B | HR | RBI | BB | SO | AVG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | ALCS | SEA | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 |
| 2025 | ALDS2 | SEA | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 |
| 2022 | ALDS2 | SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 |
| 2022 | ALWC2 | SEA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 |
Playoff Career Pitching
Playoff Pitching by Year
Game Log & Splits
View full game log (224 games) →Per-game data from Retrosheet (regular season, through 2025).
Batting — Home / Away
| Split | G | AB | R | H | HR | RBI | AVG |
|---|---|---|---|---|---|---|---|
| Home | 54 | 0 | 0 | 0 | 0 | 0 | — |
| Away | 58 | 0 | 0 | 0 | 0 | 0 | — |
Pitching — Home / Away
| Split | G | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Home | 54 | 313.2 | 280 | 107 | 47 | 330 | 3.07 |
| Away | 58 | 324.0 | 336 | 147 | 46 | 291 | 4.08 |
Last 10 Games — Pitching
| Date | Tm | Opp | Dec | IP | H | R | ER | BB | SO | HR |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-09-26 | SEA | LAD | L | 5.0 | 3 | 2 | 2 | 1 | 10 | 1 |
| 2025-09-20 | SEA | HOU | W | 6.0 | 5 | 0 | 0 | 0 | 7 | 0 |
| 2025-09-14 | SEA | LAA | W | 6.1 | 3 | 2 | 2 | 0 | 14 | 2 |
| 2025-09-09 | SEA | STL | — | 4.0 | 7 | 3 | 3 | 2 | 2 | 0 |
| 2025-09-03 | SEA | TBR | L | 2.0 | 10 | 8 | 7 | 0 | 1 | 0 |
| 2025-08-29 | SEA | CLE | — | 7.0 | 6 | 2 | 2 | 0 | 6 | 2 |
| 2025-08-23 | SEA | OAK | — | 6.0 | 4 | 1 | 1 | 3 | 3 | 0 |
| 2025-08-17 | SEA | NYN | L | 4.2 | 12 | 7 | 7 | 3 | 4 | 1 |
| 2025-08-12 | SEA | BAL | W | 7.0 | 3 | 0 | 0 | 0 | 7 | 0 |
| 2025-08-06 | SEA | CHW | W | 6.0 | 5 | 2 | 2 | 2 | 9 | 0 |
Fielding Statistics
Career Fielding Totals by Position
Season-by-Season Fielding
Career Games by Position
Circle size = games played at each position.
| Position | Games |
|---|---|
| Pitcher | 112 |
Awards & Honors
| Year | Award | Notes |
|---|---|---|
| 2022 | Rookie of the Month | August |
Award Voting History
| Year | Award | League | Finish | Points Won | Points Max | Votes First |
|---|---|---|---|---|---|---|
| 2023 | Cy Young Award | AL | 8th | 8.0 | 210 | 0 |
| 2022 | Rookie of the Year | AL | 6th | 1.0 | 150 | 0 |
Most Similar Players
Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.
Compare George Kirby
George Kirby: the record in brief
George Kirby made a major league debut on May 8, 2022 and is still active, so the totals on this page keep changing. All of the seasons listed were played for the Seattle Mariners. Kirby played primarily as a pitcher and both batted and threw right-handed. Born on February 4, 1998, in Rye, NY, USA, Kirby was listed at 215 pounds on a 6-foot-4 frame. Kirby's full given name, per the bio, is George Joseph Kirby.
Kirby has gone 54-45 with a 3.74 ERA in 142 games, 142 of them starts. The same table counts 769 strikeouts. That 3.74 ERA compares with a 4.14 league average across the same seasons, 9.6% better. The best win total was 14, in 2024. Among the heaviest workloads, the lowest ERA was 3.35 in 2023, when the league's was 4.33. Kirby's career Pitcher PIV, which scores run prevention against each season's league, is 14,778.2.
Pitching in the playoffs, Kirby went 0-1 with a 4.15 ERA in 6 games. Those appearances came in 2022 and 2025.
Kirby's awards table lists Rookie of the Month (2022). Kirby's All-Star record, per the bio, is All-Star. Kirby finished 6th in the 2022 Rookie of the Year voting, the best showing in the voting table.
Frequently Asked Questions about George Kirby
- What years did George Kirby play?
- George Kirby played in Major League Baseball from 2022 to 2026.
- Was George Kirby a pitcher?
- Yes. George Kirby pitched in the major leagues, recording 54 wins and 769 strikeouts.
- What teams has George Kirby played for?
- George Kirby has played for one team, the Seattle Mariners (2022–2026).
- Has George Kirby won a Cy Young Award?
- No. George Kirby has not won the Cy Young Award through the 2025 season, the latest in the site's award records.
- What awards has George Kirby won?
- George Kirby has been selected to 1 All-Star Game.
- What are George Kirby's career stats?
- In 142 games, George Kirby has gone 54-45 with a 3.74 ERA, 769 strikeouts, and 812.1 innings pitched.
- What position does George Kirby play?
- George Kirby plays primarily as a pitcher, the position where he has appeared in the most games.
- How tall is George Kirby and how much does he weigh?
- George Kirby is listed at 6 feet 4 inches and 215 pounds.
- What number does George Kirby wear?
- George Kirby wears number 68, according to MLB's 2026 roster data.
- What was George Kirby's career ERA?
- George Kirby finished with a 3.74 career ERA, going 54-45 with 769 strikeouts.
- How many strikeouts did George Kirby have?
- George Kirby recorded 769 career strikeouts.
- How many All-Star Games has George Kirby made?
- George Kirby has been selected to 1 All-Star Game.