• Central League
  • Hanshin Tigers
  • Yokohama DeNA BayStars
  • Yomiuri Giants
  • Chunichi Dragons
  • Hiroshima Toyo Carp
  • Tokyo Yakult Swallows
  • Pacific League
  • Fukuoka Softbank Hawks
  • Hokkaido Nippon-Ham Fighters
  • ORIX Buffaloes
  • Tohoku Rakuten Golden Eagles
  • Saitama Seibu Lions
  • Chiba Lotte Marines
  • Japan Baseball

Players

  • 17
  • Tohoku Rakuten Golden Eagles
  • Koja, Tatsuki
Position Pitcher
Bats / Throws Left / Left
Height / Weight 182cm/ 75kg
Born August 18, 2001
Year Team G W L SV HLD HP CG SHO PCT BF IP H HR BB HB SO WP BK R ER ERA
2024 Rakuten 15 5 8 0 0 0 0 0 .385 347
83 .1
70 10 31 7 58 0 0 42 40 4.32
2025 Rakuten 19 7 7 0 0 1 1 1 .500 459
107
118 8 27 3 76 1 0 48 44 3.70
2026 Rakuten 16 1 9 0 0 0 2 0 .100 382
91
84 9 25 4 79 0 0 40 35 3.46
Totals 50 13 24 0 0 1 3 1 .351 1188
281 .1
272 27 83 14 213 1 0 130 119 3.81
Year Team G PA AB R H 2B 3B HR TB RBI SB CS SH SF BB HP SO GDP AVG SLG OBP
2024 Rakuten 15 3 1 1 0 0 0 0 0 0 0 0 2 0 0 0 1 0 .000 .000 .000
2025 Rakuten 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .000 .000 .000
2026 Rakuten 16 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 .000 .000 .000
Totals 50 6 4 1 0 0 0 0 0 0 0 0 2 0 0 0 3 0 .000 .000 .000