Batting
Pitching
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Tatsuki Koja
P
Age: 25
Bats/Throws: L/L
N/A / N/A
DOB: 8/18/2001
(25 years, 19 days)
P
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NPB
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 22 | 5 | 8 | 0 | 15 | 15 | 83.1 | 6.26 | 3.35 | 1.08 | .249 | 70.2% | 41.8% | 10.0% | 4.32 | 4.23 | 3.69 | ||||||
| 2025 | RAK | NPB | 23 | 7 | 7 | 0 | 19 | 18 | 107.0 | 6.39 | 2.27 | 0.67 | .319 | 73.1% | 47.2% | 8.3% | 3.70 | 3.09 | 2.94 | ||||||
| 2026 | RAK | NPB | 24 | 1 | 10 | 0 | 17 | 17 | 96.0 | 7.88 | 2.63 | 0.94 | .292 | 72.1% | 45.2% | 11.5% | 3.66 | 3.44 | 3.19 |
| Season | Team | Level | Age | W | L | SV | G | GS | IP | divider | K/9 | BB/9 | HR/9 | BABIP | LOB% | GB% | HR/FB | divider | vFA | divider | ERA | xERA | FIP | xFIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 22 | 5 | 8 | 0 | 15 | 15 | 83.1 | 6.26 | 3.35 | 1.08 | .249 | 70.2% | 41.8% | 10.0% | 4.32 | 4.23 | 3.69 | ||||||
| 2025 | RAK | NPB | 23 | 7 | 7 | 0 | 19 | 18 | 107.0 | 6.39 | 2.27 | 0.67 | .319 | 73.1% | 47.2% | 8.3% | 3.70 | 3.09 | 2.94 | ||||||
| 2026 | RAK | NPB | 24 | 1 | 10 | 0 | 17 | 17 | 96.0 | 7.88 | 2.63 | 0.94 | .292 | 72.1% | 45.2% | 11.5% | 3.66 | 3.44 | 3.19 |
NPB
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 5 | 8 | 4.32 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 83.1 | 347 | 70 | 42 | 40 | 10 | 31 | 1 | 7 | 0 | 0 | 58 | |
| 2025 | RAK | NPB | 7 | 7 | 3.70 | 19 | 18 | 1 | 1 | 0 | 0 | 1 | 107.0 | 459 | 118 | 48 | 44 | 8 | 27 | 0 | 3 | 1 | 0 | 76 | |
| 2026 | RAK | NPB | 1 | 10 | 3.66 | 17 | 17 | 2 | 0 | 0 | 0 | 0 | 96.0 | 408 | 92 | 45 | 39 | 10 | 28 | 0 | 5 | 0 | 0 | 84 |
| Season | Team | Level | W | L | ERA | G | GS | QS | CG | ShO | SV | HLD | BS | IP | TBF | H | R | ER | HR | BB | IBB | HBP | WP | BK | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 5 | 8 | 4.32 | 15 | 15 | 0 | 0 | 0 | 0 | 0 | 83.1 | 347 | 70 | 42 | 40 | 10 | 31 | 1 | 7 | 0 | 0 | 58 | |
| 2025 | RAK | NPB | 7 | 7 | 3.70 | 19 | 18 | 1 | 1 | 0 | 0 | 1 | 107.0 | 459 | 118 | 48 | 44 | 8 | 27 | 0 | 3 | 1 | 0 | 76 | |
| 2026 | RAK | NPB | 1 | 10 | 3.66 | 17 | 17 | 2 | 0 | 0 | 0 | 0 | 96.0 | 408 | 92 | 45 | 39 | 10 | 28 | 0 | 5 | 0 | 0 | 84 |
AveragesNPB
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 6.26 | 3.35 | 1.87 | 1.08 | 16.7% | 8.9% | 7.8% | .227 | 1.21 | .249 | 70.2% | 147 | 144 | 4.23 | ||||
| 2025 | RAK | NPB | 6.39 | 2.27 | 2.81 | 0.67 | 16.6% | 5.9% | 10.7% | .275 | 1.36 | .319 | 73.1% | 126 | 105 | 3.09 | ||||
| 2026 | RAK | NPB | 7.88 | 2.63 | 3.00 | 0.94 | 20.6% | 6.9% | 13.7% | .245 | 1.25 | .292 | 72.1% | 107 | 100 | 3.44 |
| Season | Team | Level | K/9 | BB/9 | K/BB | HR/9 | divider | K% | BB% | K-BB% | divider | AVG | WHIP | BABIP | LOB% | divider | ERA- | FIP- | divider | FIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 6.26 | 3.35 | 1.87 | 1.08 | 16.7% | 8.9% | 7.8% | .227 | 1.21 | .249 | 70.2% | 147 | 144 | 4.23 | ||||
| 2025 | RAK | NPB | 6.39 | 2.27 | 2.81 | 0.67 | 16.6% | 5.9% | 10.7% | .275 | 1.36 | .319 | 73.1% | 126 | 105 | 3.09 | ||||
| 2026 | RAK | NPB | 7.88 | 2.63 | 3.00 | 0.94 | 20.6% | 6.9% | 13.7% | .245 | 1.25 | .292 | 72.1% | 107 | 100 | 3.44 |
