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George Kirby
Seattle MarinersMLB
ID: 669923
27
Outings
2,386
Total Pitches
158
Strikeouts
33
Walks
4.79
K/BB
Proprietary Metrics
27 games • 2,386 pitches
87Tunnel ScoreRelease point similarity89SeparationMovement divergence33Extension ScoreFastball extension & velo jump
What do these metrics mean?
Tunnel Score (0-100): Measures how similar a pitcher's pitches look coming out of the hand before they diverge. Higher scores indicate better deception—the ball looks the same to the batter regardless of pitch type until it's too late.
Separation Score (0-100): Measures how much the pitches diverge at the plate based on horizontal and vertical movement. Higher separation means more contrast between pitch types, making the arsenal harder to square up.
Extension Score (0-100): Measures fastball extension and perceived velocity jump. Higher scores indicate better release extension and effective speed vs release speed, making the fastball appear faster to batters.
Arsenal Over Time
Velocity Over Time
Spin Rate Over Time
All Outings (118)
| Date▲▼ | Opp▲▼ | Pitches▲▼ | Velo▲▼ | K▲▼ | BB▲▼ | SwStr%▲▼ | Tunnel▲▼ | Sep▲▼ | Pair▲▼ |
|---|---|---|---|---|---|---|---|---|---|
| 2025-10-20 | TOR | 65 | 94.4(98.8) | 3 | 1 | 12.3% | 92 | 88 | SI/SL |
| 2025-10-15 | TOR | 74 | 92.0(98.1) | 4 | 2 | 12.2% | 89 | 93 | SI/SL |
| 2025-10-10 | DET | 66 | 91.3(98.1) | 6 | 0 | 9.1% | 87 | 94 | SI/SL |
| 2025-10-04 | DET | 94 | 93.6(99.5) | 8 | 1 | 16.0% | 86 | 89 | SI/SL |
| 2025-09-26 | LAD | 85 | 92.8(98.5) | 10 | 1 | 17.6% | 90 | 95 | SI/SL |
| 2025-09-20 | HOU | 100 | 94.0(98.7) | 7 | 0 | 11.0% | 83 | 88 | SI/SL |
| 2025-09-14 | LAA | 101 | 93.6(98.5) | 14 | 0 | 16.8% | 90 | 89 | FF/SL |
| 2025-09-09 | STL | 85 | 93.0(97.7) | 2 | 2 | 2.4% | 87 | 77 | SI/SL |
| 2025-09-03 | TB | 54 | 90.7(97.7) | 1 | 0 | 14.8% | 87 | 77 | SI/SL |
| 2025-08-29 | CLE | 98 | 90.0(97.2) | 6 | 0 | 10.2% | 84 | 89 | FF/SL |
| 2025-08-23 | ATH | 98 | 92.4(97.9) | 3 | 3 | 13.3% | 87 | 91 | SI/SL |
| 2025-08-17 | NYM | 97 | 91.4(98.6) | 4 | 3 | 8.2% | 77 | 98 | SI/SL |
| 2025-08-12 | BAL | 87 | 91.6(97.6) | 7 | 0 | 10.3% | 89 | 93 | SI/SL |
| 2025-08-06 | CWS | 104 | 91.5(97.8) | 9 | 2 | 15.4% | 90 | 92 | SI/SL |
| 2025-07-31 | TEX | 94 | 92.6(97.8) | 6 | 2 | 10.6% | 85 | 96 | SI/SL |
| 2025-07-26 | LAA | 106 | 91.6(97.9) | 9 | 3 | 17.0% | 87 | 87 | SI/SL |
| 2025-07-21 | MIL | 83 | 90.9(96.8) | 3 | 1 | 14.5% | 91 | 94 | SI/SL |
| 2025-07-12 | DET | 99 | 90.4(97.9) | 6 | 3 | 12.1% | 85 | 82 | FF/SL |
| 2025-07-06 | PIT | 93 | 91.3(97.4) | 9 | 0 | 18.3% | 89 | 82 | SI/SL |
| 2025-06-30 | KC | 85 | 91.7(96.6) | 5 | 0 | 14.1% | 91 | 90 | FF/SL |
| 2025-06-25 | MIN | 90 | 91.0(98.0) | 3 | 1 | 6.7% | 80 | 98 | SI/SL |
| 2025-06-20 | CHC | 85 | 90.7(96.9) | 3 | 1 | 5.9% | 88 | 83 | SI/SL |
| 2025-06-14 | CLE | 101 | 91.5(98.0) | 5 | 3 | 8.9% | 87 | 86 | FF/KC |
| 2025-06-08 | LAA | 96 | 92.9(98.1) | 14 | 0 | 12.5% | 88 | 89 | FF/SL |
| 2025-06-03 | BAL | 96 | 93.2(97.7) | 3 | 1 | 9.4% | 86 | 89 | FF/SL |
| 2025-05-28 | WSH | 78 | 90.0(96.7) | 4 | 2 | 10.3% | 86 | 84 | FF/KC |
| 2025-05-22 | HOU | 72 | 92.7(98.8) | 4 | 1 | 11.1% | 87 | 82 | SI/SL |
| 2024-09-25 | HOU | 96 | 91.8(97.9) | 6 | 1 | 11.5% | 85 | 86 | FF/SL |
| 2024-09-20 | TEX | 85 | 93.9(97.7) | 4 | 0 | 10.6% | 85 | 70 | FF/SL |
| 2024-09-15 | TEX | 85 | 93.1(97.4) | 3 | 0 | 9.4% | 86 | 71 | FF/SL |
| 2024-09-10 | SD | 97 | 91.9(98.3) | 4 | 1 | 13.4% | 86 | 91 | FF/SL |
| 2024-09-04 | ATH | 85 | 92.0(98.1) | 9 | 0 | 12.9% | 86 | 91 | FF/SL |
| 2024-08-30 | LAA | 82 | 91.9(98.1) | 2 | 1 | 7.3% | 86 | 92 | FF/KC |
| 2024-08-24 | SF | 95 | 91.1(96.4) | 3 | 1 | 5.3% | 87 | 82 | FF/SL |
| 2024-08-18 | PIT | 97 | 93.2(98.6) | 5 | 2 | 9.3% | 86 | 76 | FF/KC |
| 2024-08-13 | DET | 86 | 91.1(97.4) | 5 | 1 | 17.4% | 88 | 78 | FF/KC |
| 2024-08-07 | DET | 97 | 91.1(98.3) | 7 | 1 | 14.4% | 87 | 81 | FF/SL |
| 2024-07-31 | BOS | 95 | 91.2(97.8) | 2 | 1 | 5.3% | 72 | 75 | FF/KC |
| 2024-07-26 | CWS | 88 | 92.0(97.7) | 7 | 1 | 9.1% | 83 | 75 | SI/SL |
| 2024-07-20 | HOU | 100 | 91.7(98.6) | 6 | 0 | 13.0% | 87 | 78 | SI/SL |
| 2024-07-13 | LAA | 92 | 90.7(97.4) | 7 | 2 | 13.0% | 86 | 80 | SI/SL |
| 2024-07-07 | TOR | 93 | 93.3(98.6) | 8 | 1 | 16.1% | 88 | 77 | SI/SL |
| 2024-07-02 | BAL | 95 | 91.4(98.4) | 5 | 1 | 12.6% | 86 | 85 | FF/KC |
| 2024-06-26 | TB | 87 | 92.6(97.1) | 7 | 0 | 12.6% | 86 | 81 | FF/SL |
| 2024-06-21 | MIA | 85 | 92.5(97.2) | 5 | 0 | 14.1% | 83 | 86 | FF/SL |
| 2024-06-15 | TEX | 90 | 93.0(97.7) | 6 | 2 | 14.4% | 88 | 78 | FF/SL |
| 2024-06-09 | KC | 96 | 91.2(98.1) | 4 | 0 | 9.4% | 86 | 84 | SI/SL |
| 2024-06-04 | ATH | 94 | 91.6(97.0) | 9 | 1 | 13.8% | 86 | 77 | FF/SL |
| 2024-05-29 | HOU | 94 | 91.3(98.0) | 8 | 0 | 14.9% | 87 | 87 | SI/SL |
| 2024-05-24 | WSH | 82 | 91.9(97.6) | 3 | 1 | 9.8% | 83 | 73 | FF/KC |
| 2024-05-19 | BAL | 83 | 91.6(97.3) | 3 | 0 | 10.8% | 83 | 82 | SI/SL |
| 2024-05-13 | KC | 101 | 92.8(98.1) | 6 | 0 | 9.9% | 88 | 87 | FF/KC |
| 2024-05-08 | MIN | 70 | 91.0(95.9) | 4 | 1 | 7.1% | 83 | 81 | FF/SL |
| 2024-05-03 | HOU | 88 | 91.9(96.6) | 3 | 0 | 6.8% | 81 | 84 | SI/SL |
| 2024-04-27 | AZ | 95 | 93.3(99.3) | 12 | 1 | 21.1% | 87 | 73 | FF/SL |
| 2024-04-21 | COL | 88 | 89.9(95.7) | 7 | 1 | 6.8% | 86 | 72 | FF/KC |
| 2024-04-15 | CIN | 89 | 92.6(98.1) | 6 | 0 | 11.2% | 84 | 91 | FF/KC |
| 2024-04-09 | TOR | 87 | 92.3(98.7) | 3 | 0 | 4.6% | 76 | 89 | FF/SL |
| 2024-04-03 | CLE | 72 | 88.9(96.0) | 2 | 0 | 9.7% | 87 | 85 | FF/SL |
| 2024-03-29 | BOS | 100 | 90.8(97.1) | 8 | 2 | 16.0% | 86 | 86 | FF/KC |
| 2023-10-01 | TEX | 75 | 91.4(98.5) | 7 | 0 | 14.7% | 81 | 75 | FF/SL |
| 2023-09-26 | HOU | 85 | 92.5(97.9) | 4 | 0 | 9.4% | 88 | 84 | SI/SL |
| 2023-09-20 | ATH | 85 | 92.5(98.3) | 3 | 0 | 8.2% | 86 | 76 | SI/SL |
| 2023-09-15 | LAD | 81 | 91.7(97.4) | 7 | 2 | 18.5% | 87 | 71 | FF/SL |
| 2023-09-08 | TB | 102 | 92.9(98.4) | 6 | 2 | 14.7% | 83 | 90 | FF/KC |
| 2023-09-03 | NYM | 73 | 90.1(97.9) | 3 | 0 | 11.0% | 80 | 84 | FF/SL |
| 2023-08-23 | CWS | 100 | 90.0(97.2) | 9 | 0 | 17.0% | 78 | 77 | FF/SL |
| 2023-08-17 | KC | 73 | 92.1(97.9) | 2 | 0 | 6.8% | 78 | 79 | FF/KC |
| 2023-08-12 | BAL | 103 | 92.7(99.7) | 7 | 0 | 14.6% | 87 | 87 | FF/KC |
| 2023-08-05 | LAA | 96 | 90.3(98.7) | 5 | 0 | 14.6% | 84 | 90 | FF/KC |
| 2023-07-31 | BOS | 97 | 92.4(98.6) | 7 | 2 | 10.3% | 87 | 84 | FF/SL |
| 2023-07-25 | MIN | 89 | 91.8(98.1) | 9 | 1 | 11.2% | 83 | 77 | FF/SL |
| 2023-07-20 | MIN | 99 | 92.9(98.0) | 10 | 0 | 16.2% | 87 | 79 | FF/SL |
| 2023-07-15 | DET | 87 | 92.4(98.8) | 4 | 1 | 12.6% | 84 | 81 | FF/SL |
| 2023-07-06 | HOU | 93 | 92.9(97.8) | 3 | 1 | 6.5% | 79 | 82 | SI/SL |
| 2023-07-01 | TB | 101 | 92.0(97.8) | 7 | 2 | 13.9% | 83 | 74 | FF/KC |
| 2023-06-25 | BAL | 98 | 91.4(98.7) | 4 | 1 | 8.2% | 82 | 81 | FF/SL |
| 2023-06-20 | NYY | 95 | 91.2(98.3) | 4 | 0 | 4.2% | 84 | 100 | SI/SL |
| 2023-06-13 | MIA | 92 | 93.2(99.4) | 10 | 0 | 19.6% | 84 | 96 | FF/KC |
| 2023-06-07 | SD | 86 | 92.7(98.2) | 3 | 0 | 11.6% | 82 | 92 | FF/SL |
| 2023-05-31 | NYY | 95 | 92.6(99.1) | 7 | 0 | 9.5% | 84 | 97 | FF/KC |
| 2023-05-26 | PIT | 92 | 91.6(97.2) | 4 | 1 | 4.3% | 88 | 81 | FF/KC |
| 2023-05-21 | ATL | 88 | 91.6(98.2) | 6 | 1 | 12.5% | 83 | 88 | FF/KC |
| 2023-05-15 | BOS | 97 | 91.5(97.5) | 6 | 1 | 5.2% | 82 | 87 | FF/KC |
| 2023-05-09 | TEX | 101 | 90.0(97.0) | 9 | 0 | 9.9% | 86 | 91 | FF/KC |
| 2023-05-04 | ATH | 98 | 90.6(95.6) | 2 | 1 | 6.1% | 82 | 91 | SI/SL |
| 2023-04-27 | PHI | 89 | 89.9(96.9) | 7 | 1 | 9.0% | 81 | 100 | FF/KC |
| 2023-04-21 | STL | 86 | 88.9(96.1) | 5 | 0 | 12.8% | 88 | 95 | FF/KC |
| 2023-04-15 | COL | 90 | 91.6(96.5) | 3 | 0 | 7.8% | 83 | 94 | FF/SL |
| 2023-04-09 | CLE | 96 | 90.9(96.5) | 4 | 0 | 5.2% | 81 | 88 | FF/KC |
| 2023-04-03 | LAA | 84 | 91.0(97.0) | 5 | 1 | 13.1% | 85 | 89 | FF/KC |
| 2022-10-15 | HOU | 92 | 92.9(97.8) | 5 | 0 | 15.2% | 82 | 71 | SI/SL |
| 2022-10-08 | TOR | 26 | 95.4(99.0) | 1 | 1 | 11.5% | 88 | 78 | FF/SL |
| 2022-10-03 | DET | 93 | 90.6(95.6) | 5 | 3 | 10.8% | 85 | 76 | FF/SL |
| 2022-09-28 | TEX | 88 | 89.8(95.8) | 4 | 1 | 8.0% | 86 | 91 | FF/SL |
| 2022-09-22 | ATH | 69 | 90.4(95.9) | 1 | 3 | 4.3% | 88 | 70 | FF/KC |
| 2022-09-17 | LAA | 84 | 91.9(96.9) | 8 | 1 | 13.1% | 84 | 78 | FF/KC |
| 2022-09-10 | ATL | 85 | 92.0(97.0) | 6 | 0 | 5.9% | 84 | 74 | FF/SL |
| 2022-09-04 | CLE | 39 | 90.5(95.6) | 2 | 0 | 7.7% | 82 | 82 | FF/SL |
| 2022-08-30 | DET | 79 | 92.6(98.6) | 5 | 1 | 6.3% | 82 | 80 | FF/SL |
| 2022-08-24 | WSH | 85 | 91.4(97.8) | 9 | 0 | 10.6% | 84 | 81 | FF/SL |
| 2022-08-17 | LAA | 94 | 90.8(96.6) | 7 | 1 | 9.6% | 86 | 85 | FF/KC |
| 2022-08-12 | TEX | 83 | 90.3(96.3) | 5 | 1 | 4.8% | 83 | 82 | FF/KC |
| 2022-08-06 | LAA | 80 | 91.3(97.2) | 8 | 0 | 16.3% | 87 | 76 | FF/KC |
| 2022-07-31 | HOU | 74 | 90.6(96.3) | 7 | 1 | 5.4% | 84 | 94 | SI/SL |
| 2022-07-26 | TEX | 51 | 91.7(97.1) | 4 | 1 | 11.8% | 84 | 95 | FF/KC |
| 2022-07-08 | TOR | 88 | 91.2(97.6) | 4 | 1 | 9.1% | 87 | 76 | FF/KC |
| 2022-07-02 | ATH | 100 | 90.0(97.1) | 9 | 1 | 13.0% | 85 | 84 | FF/KC |
| 2022-06-27 | BAL | 95 | 90.2(97.2) | 2 | 1 | 10.5% | 86 | 88 | FF/KC |
| 2022-06-22 | ATH | 96 | 90.0(97.3) | 6 | 1 | 8.3% | 83 | 97 | FF/KC |
| 2022-06-16 | LAA | 97 | 90.1(97.8) | 6 | 1 | 12.4% | 82 | 93 | FF/KC |
| 2022-06-11 | BOS | 97 | 91.1(98.7) | 4 | 1 | 9.3% | 83 | 85 | FF/KC |
| 2022-06-05 | TEX | 90 | 90.5(97.0) | 3 | 0 | 7.8% | 78 | 82 | FC/FF |
| 2022-05-31 | BAL | 94 | 90.2(97.3) | 8 | 1 | 12.8% | 81 | 87 | FF/KC |
| 2022-05-24 | ATH | 90 | 90.8(96.9) | 9 | 0 | 10.0% | 82 | 88 | FF/KC |
| 2022-05-19 | BOS | 71 | 90.5(96.9) | 3 | 1 | 8.5% | 82 | 84 | FF/KC |
| 2022-05-14 | NYM | 89 | 91.0(98.2) | 1 | 1 | 6.7% | 80 | 84 | FF/KC |
| 2022-05-08 | TB | 81 | 92.2(97.9) | 7 | 0 | 17.3% | 82 | 79 | FC/FF |