Batting
Pitching
Tatsuki Koja
P
Age: 23
Bats/Throws: L/L
N/A / N/A
DOB: 8/18/2001
(23 years, 8 months, 14 days)
P
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NPB
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 2 | 0 | 5 | 5 | 30.2 | 4.70 | 3.23 | 0.29 | .255 | 69.1% | 39.4% | 2.7% | 3.82 | 3.13 | 3.61 |
| Season | Team | Level | Age | W W - Wins | L L - Losses | SV SV - Saves | G G - Games Pitched | GS GS - Games Started | IP IP - Innings Pitched | divider | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | GB% GB% - Ground Ball Percentage (GB/BIP) | HR/FB HR/FB - Home Run to Fly Ball Ratio | divider | vFA vFA - Fourseam Fastball velocity (Pitch Info) | divider | ERA ERA - Earned Run Average ((ER*9)/IP) | xERA xERA - Expected ERA | FIP FIP - Fielder Independent Pitching on an ERA scale | xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced | WAR WAR - Wins Above Replacement |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 2 | 0 | 5 | 5 | 30.2 | 4.70 | 3.23 | 0.29 | .255 | 69.1% | 39.4% | 2.7% | 3.82 | 3.13 | 3.61 |
NPB
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 2 | 3.82 | 5 | 5 | 1 | 1 | 0 | 0 | 0 | 30.2 | 131 | 27 | 13 | 13 | 1 | 11 | 0 | 1 | 0 | 0 | 16 |
| Season | Team | Level | W W - Wins | L L - Losses | ERA ERA - Earned Run Average ((ER*9)/IP) | G G - Games Pitched | GS GS - Games Started | QS | CG CG - Complete Games | ShO ShO - Shoutouts | SV SV - Saves | HLD HLD - Holds | BS BS - Blown Saves | IP IP - Innings Pitched | TBF TBF - Total Batters Faced | H H - Hits Allowed | R R - Runs Allowed | ER ER - Earned Runs | HR HR - Home Runs | BB BB - Walks | IBB IBB - Intentional | HBP HBP - Hit Batters | WP WP - Wild Pitches | BK BK - Balks | SO SO - Strikeouts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 | 2 | 3.82 | 5 | 5 | 1 | 1 | 0 | 0 | 0 | 30.2 | 131 | 27 | 13 | 13 | 1 | 11 | 0 | 1 | 0 | 0 | 16 |
AveragesNPB
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 6.26 | 3.35 | 1.87 | 1.08 | 16.7% | 8.9% | 7.8% | .227 | 1.21 | .249 | 70.2% | 145 | 142 | 4.23 | ||||
| 2025 | RAK | NPB | 4.70 | 3.23 | 1.45 | 0.29 | 12.2% | 8.4% | 3.8% | .227 | 1.24 | .255 | 69.1% | 142 | 108 | 3.13 |
| Season | Team | Level | K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP) | BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP) | K/BB K/BB - Strikeout to Walk Ratio (SO/BB) | HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP) | divider | K% K% - Strikeout Percentage (SO/TBF) | BB% BB% - Walk Percentage (BB/TBF) | K-BB% K-BB% - The difference between strikeout percentage and walk percentage | divider | AVG AVG - Batting Average Against | WHIP WHIP - Walks + Hits divided by Innings Pitched | BABIP BABIP - Batting Average on Balls in Play | LOB% LOB% - Left on Base Percentage | divider | ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better | FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better | divider | FIP FIP - Fielder Independent Pitching on an ERA scale |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | RAK | NPB | 6.26 | 3.35 | 1.87 | 1.08 | 16.7% | 8.9% | 7.8% | .227 | 1.21 | .249 | 70.2% | 145 | 142 | 4.23 | ||||
| 2025 | RAK | NPB | 4.70 | 3.23 | 1.45 | 0.29 | 12.2% | 8.4% | 3.8% | .227 | 1.24 | .255 | 69.1% | 142 | 108 | 3.13 |
