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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Greg Yager | 2029-2032 | 12 | 10 | .545 | 4.04 | 39 | 34 | 2 | 0 | 1 | 202.2 | 216 | 91 | 9 | 101 | 177 |
| Hiroshige Yamada | 2014-2014 | 0 | 1 | .000 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0.0 | 3 | 4 | 1 | 2 | 0 |
| Wang Yang | 2031-2032 | 25 | 16 | .610 | 3.62 | 64 | 64 | 1 | 1 | 0 | 383.1 | 331 | 154 | 36 | 191 | 556 |
| Phil Yates | 2009-2009 | 1 | 0 | 1.000 | 0.00 | 6 | 0 | 0 | 0 | 1 | 9.0 | 2 | 0 | 0 | 2 | 11 |
| Lúcio Ybarra | 2035-2035 | 0 | 1 | .000 | 6.35 | 2 | 2 | 0 | 0 | 0 | 11.1 | 13 | 8 | 4 | 3 | 8 |
| Araga Yeluri | 2033-2034 | 12 | 3 | .800 | 3.47 | 35 | 35 | 0 | 0 | 0 | 194.2 | 167 | 75 | 13 | 61 | 203 |
| Chang-heui Yi | 2007-2008 | 8 | 2 | .800 | 2.88 | 61 | 11 | 1 | 0 | 0 | 122.0 | 104 | 39 | 7 | 29 | 102 |
| Won-sup Yi | 2017-2017 | 0 | 1 | .000 | 3.48 | 6 | 0 | 0 | 0 | 0 | 10.1 | 16 | 4 | 0 | 3 | 6 |
| Yong-taek Yi | 2013-2020 | 16 | 8 | .667 | 2.61 | 228 | 11 | 0 | 0 | 9 | 299.2 | 233 | 87 | 19 | 132 | 379 |
| Mabuchi Yoshida | 2013-2015 | 23 | 25 | .479 | 2.62 | 54 | 54 | 8 | 2 | 0 | 394.1 | 326 | 115 | 21 | 102 | 329 |
| Tadao Yoshida | 2013-2015 | 11 | 8 | .579 | 1.88 | 178 | 0 | 0 | 0 | 52 | 186.1 | 122 | 39 | 7 | 82 | 258 |
| Bobby Young | 2036-2037 | 7 | 3 | .700 | 4.46 | 109 | 0 | 0 | 0 | 2 | 121.0 | 137 | 60 | 15 | 58 | 140 |
| Chris Young | 2007-2009 | 26 | 20 | .565 | 3.65 | 78 | 59 | 0 | 0 | 0 | 392.0 | 362 | 159 | 31 | 111 | 290 |
| John Young | 2035-2037 | 10 | 4 | .714 | 4.21 | 89 | 4 | 0 | 0 | 4 | 162.1 | 150 | 76 | 23 | 76 | 193 |
| Colin Younger | 2027-2028 | 9 | 10 | .474 | 4.04 | 75 | 0 | 0 | 0 | 5 | 138.0 | 113 | 62 | 12 | 57 | 151 |
| Wilson Yoxall | 2025-2026 | 5 | 4 | .556 | 3.24 | 81 | 0 | 0 | 0 | 1 | 114.0 | 73 | 41 | 7 | 64 | 169 |
| Sok-man Yu | 2020-2020 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 1.1 | 0 | 0 | 0 | 0 | 0 |
| Su-kweon Yu | 2013-2019 | 0 | 0 | .000 | 10.80 | 2 | 0 | 0 | 0 | 0 | 8.1 | 16 | 10 | 2 | 6 | 4 |
| Hyun-soo Yun | 2008-2008 | 5 | 1 | .833 | 1.73 | 22 | 1 | 0 | 0 | 0 | 36.1 | 26 | 7 | 2 | 10 | 40 |
| Seung-woo Yun | 2008-2008 | 0 | 1 | .000 | 2.08 | 14 | 0 | 0 | 0 | 9 | 13.0 | 9 | 3 | 0 | 6 | 19 |
