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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Victor Zambrano | 2002-2002 | 1 | 0 | 1.000 | 3.38 | 3 | 0 | 0 | 0 | 0 | 2.2 | 3 | 1 | 0 | 1 | 5 |
| Félix Zamora | 2006-2007 | 12 | 15 | .444 | 3.66 | 73 | 27 | 0 | 0 | 19 | 213.2 | 181 | 87 | 13 | 103 | 144 |
| Raúl Zamora | 2023-2024 | 13 | 8 | .619 | 2.89 | 36 | 32 | 2 | 2 | 0 | 227.0 | 188 | 73 | 21 | 75 | 171 |
| Vincente Zamora | 2023-2023 | 3 | 3 | .500 | 4.57 | 16 | 9 | 1 | 0 | 0 | 65.0 | 59 | 33 | 9 | 30 | 56 |
| Anastasio Zapata | 2030-2031 | 15 | 4 | .789 | 3.97 | 91 | 1 | 0 | 0 | 3 | 167.2 | 166 | 74 | 19 | 80 | 126 |
| Carlos Zaragoza | 2010-2011 | 9 | 8 | .529 | 3.33 | 47 | 22 | 0 | 0 | 2 | 181.1 | 187 | 67 | 6 | 68 | 150 |
| José Zarate | 2022-2023 | 10 | 10 | .500 | 4.07 | 37 | 25 | 1 | 0 | 1 | 190.0 | 154 | 86 | 27 | 90 | 187 |
| Robert Zavala | 2026-2026 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 1 | 2.0 | 0 | 0 | 0 | 1 | 5 |
| Malcolm Zegwaard | 2010-2011 | 19 | 7 | .731 | 2.93 | 42 | 42 | 1 | 0 | 0 | 270.2 | 167 | 88 | 12 | 107 | 344 |
| Jonathan Zeller | 2026-2026 | 8 | 3 | .727 | 4.82 | 43 | 0 | 0 | 0 | 10 | 46.2 | 40 | 25 | 7 | 11 | 39 |
| Xiao-shuang Zhou | 2026-2026 | 6 | 8 | .429 | 5.06 | 28 | 28 | 0 | 0 | 0 | 144.0 | 173 | 81 | 7 | 57 | 75 |
| Gui-fan Zhu | 2028-2030 | 15 | 10 | .600 | 5.04 | 40 | 40 | 2 | 0 | 0 | 248.0 | 219 | 139 | 22 | 151 | 126 |
| Clint Zhui | 2027-2028 | 11 | 9 | .550 | 3.30 | 56 | 28 | 0 | 0 | 3 | 188.1 | 149 | 69 | 9 | 106 | 151 |
| Brad Ziegler | 2009-2009 | 14 | 3 | .824 | 3.04 | 26 | 26 | 0 | 0 | 0 | 151.0 | 129 | 51 | 6 | 54 | 134 |
| Craig Zimmerman | 2019-2020 | 8 | 13 | .381 | 4.08 | 111 | 0 | 0 | 0 | 62 | 123.2 | 118 | 56 | 21 | 64 | 72 |
| Ron Zimmerman | 2017-2018 | 7 | 1 | .875 | 1.84 | 11 | 11 | 2 | 2 | 0 | 78.1 | 65 | 16 | 5 | 23 | 59 |
| Jordan Zimmermann | 2010-2011 | 13 | 13 | .500 | 4.34 | 32 | 32 | 1 | 0 | 0 | 199.0 | 196 | 96 | 22 | 41 | 153 |
| Joel Zumaya | 2007-2008 | 23 | 9 | .719 | 2.54 | 69 | 39 | 0 | 0 | 14 | 284.0 | 193 | 80 | 9 | 111 | 223 |
| Jesús Zúñiga | 2022-2023 | 4 | 3 | .571 | 4.22 | 37 | 0 | 0 | 0 | 14 | 42.2 | 34 | 20 | 4 | 22 | 46 |
| Jorge Zúñiga | 2024-2028 | 8 | 9 | .471 | 4.00 | 59 | 13 | 0 | 0 | 1 | 157.2 | 141 | 70 | 15 | 83 | 151 |
| Miguel Zúñiga | 2024-2025 | 4 | 1 | .800 | 3.05 | 10 | 10 | 0 | 0 | 0 | 56.0 | 56 | 19 | 2 | 9 | 26 |
