Player Directory
Tohoku Rakuten Golden Eagles
Tatsuki Koja
Tatsuki Koja
17
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ERA
ERA3.56
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strike out rate
K/97.95
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BB rate
BB/92.20
*FY2026
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position
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birthday
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age
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height
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body weight
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Birthplace
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Pitching and batting
left-handed pitcher / left-handed hitter
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Blood type
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Draft Year
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Biography
Shonan Gakuin High School ~ Toin Yokohama University ~ Rakuten Eagles in 2024)
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Titles won
Videos
04:24
古謝樹『6回までパーフェクト投球…8回86球2安打1失点で極上の投手戦を繰り広げる!!』《THE FEATURE PLAYER》
2026年08月09日(日) 16:32
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04:24
古謝樹『6回までパーフェクト投球…8回86球2安打1失点で極上の投手戦を繰り広げる!!』《THE FEATURE PLAYER》
2026年08月09日(日) 16:32
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03:27
【最後は3者連続三進】古謝樹『気迫の投球に味方打線も奮起した!! 勝ち星つかずも6回3失点の粘投!!』
2026年07月23日(木) 23:20
Participation results
pitcher statistics: by year
| year | Team | ERA | Appearance | CG | SHO | No Walk | Wins | Lose | H | HP | SV | W-L % | IP | hitter | HR | SO | BB | Hit By Pitch | Wild pitch | Bork | BB/9 | K/9 | K/BB | WHIP | Avg | BABIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 |
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4.32 | 15 | 0 | 0 | 0 | 5 | 8 | 0 | 0 | 0 | .385 | 83.1 | 347 | 10 | 58 | 31 | 7 | 0 | 0 | 3.35 | 6.26 | 1.87 | 1.21 | .231 | .249 |
| 2025 |
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3.70 | 19 | 1 | 1 | 0 | 7 | 7 | 0 | 1 | 0 | .500 | 107.0 | 459 | 8 | 76 | 27 | 3 | 1 | 0 | 2.27 | 6.39 | 2.81 | 1.36 | .282 | .319 |
| 2026 |
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3.56 | 15 | 2 | 0 | 1 | 1 | 9 | 0 | 0 | 0 | .100 | 86.0 | 358 | 9 | 76 | 21 | 4 | 0 | 0 | 2.20 | 7.95 | 3.62 | 1.16 | .242 | .282 |
| Overall record | 3.84 | 49 | 3 | 1 | 1 | 13 | 24 | 0 | 1 | 0 | .351 | 276.1 | 1164 | 27 | 210 | 79 | 14 | 1 | 0 | 2.57 | 6.84 | 2.66 | 1.25 | .255 | .288 | |
2026/8/18 03:08 更新
hitter statistics: by year
| year | Team | AVG | GP | PA | AB | H | 2B | 3B | HR | TB | RBI | R | SO | BB | HBP | SAC | SF | SB | CS | GIDP | SLG | OPS | ISO | ISOD | BB/K | BABIP | AB/HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 |
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.000 | 15 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | - | - |
| 2025 |
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.000 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | - | - | - |
| 2026 |
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.000 | 15 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | - |
| Overall record | .000 | 49 | 6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | - | |
2026/8/18 03:08 更新
article
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Haru Matsumoto, who is on a five-game winning streak, will start the game Tatsuki Koja, who suffered complete game loss in his last start, will be aiming for his first win in three months.
Pacific League Insight
August 15, 2026 21:53
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Tatsuki Koja But for the second time this season, complete game, 8 innings, 2 hit, 1 runs, with no run support, lose, pitcher.
Pacific League Insight
August 9, 2026 16:55
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Kohei Arihara pitches his second consecutive shutout game win! Hokkaido Nippon-Ham win the series.
Pacific League Insight
August 9, 2026 16:41
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