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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alfredo Zambrano | 2025-2030 | 29 | 10 | .744 | 2.71 | 53 | 53 | 2 | 1 | 0 | 325.0 | 256 | 98 | 26 | 39 | 286 |
| Miguel Zambrano | 2032-2034 | 32 | 26 | .552 | 2.62 | 83 | 82 | 1 | 0 | 0 | 509.1 | 404 | 148 | 45 | 100 | 416 |
| León Zamora | 2038-2038 | 5 | 3 | .625 | 2.25 | 50 | 0 | 0 | 0 | 16 | 60.0 | 42 | 15 | 4 | 23 | 72 |
| Carlos Zapata | 2013-2014 | 2 | 4 | .333 | 5.87 | 28 | 4 | 1 | 0 | 0 | 53.2 | 64 | 35 | 6 | 28 | 16 |
| César Zavala | 2007-2014 | 15 | 16 | .484 | 5.59 | 172 | 8 | 0 | 0 | 1 | 243.0 | 283 | 151 | 14 | 137 | 89 |
| Tyan-yu Zeng | 2036-2040 | 8 | 11 | .421 | 3.41 | 83 | 0 | 0 | 0 | 9 | 148.0 | 119 | 56 | 9 | 108 | 195 |
| Addisu Zeroual | 2034-2038 | 18 | 23 | .439 | 4.41 | 121 | 43 | 1 | 0 | 6 | 386.0 | 339 | 189 | 34 | 224 | 369 |
| Cheh Zhang | 2033-2038 | 11 | 8 | .579 | 2.78 | 29 | 29 | 2 | 0 | 0 | 204.0 | 171 | 63 | 15 | 48 | 166 |
| He Zhang | 2036-2038 | 13 | 11 | .542 | 3.44 | 40 | 24 | 1 | 1 | 2 | 170.0 | 170 | 65 | 12 | 45 | 119 |
| Liu-chun Zhang | 2020-2025 | 4 | 6 | .400 | 2.83 | 128 | 0 | 0 | 0 | 39 | 143.0 | 126 | 45 | 11 | 27 | 149 |
| Qian-fu Zhang | 2039-2040 | 7 | 2 | .778 | 4.18 | 47 | 0 | 0 | 0 | 7 | 84.0 | 83 | 39 | 8 | 35 | 96 |
| Shan-bo Zheng | 2033-2040 | 16 | 13 | .552 | 2.27 | 54 | 33 | 2 | 0 | 3 | 261.2 | 182 | 66 | 26 | 64 | 220 |
| Sheng Zhou | 2040-2040 | 1 | 1 | .500 | 2.29 | 9 | 0 | 0 | 0 | 2 | 19.2 | 16 | 5 | 2 | 2 | 13 |
| To-wai Zhou | 2032-2037 | 12 | 6 | .667 | 3.31 | 29 | 29 | 0 | 0 | 0 | 182.1 | 156 | 67 | 11 | 64 | 151 |
| Ding-bong Zhu | 2037-2039 | 18 | 4 | .818 | 1.54 | 34 | 33 | 1 | 1 | 0 | 204.0 | 125 | 35 | 6 | 38 | 241 |
| En-guo Zhào | 2016-2022 | 41 | 67 | .380 | 4.43 | 190 | 141 | 6 | 0 | 0 | 903.0 | 911 | 444 | 128 | 383 | 929 |
| Li-ben Zhào | 2017-2021 | 9 | 2 | .818 | 3.10 | 52 | 7 | 0 | 0 | 2 | 104.2 | 97 | 36 | 5 | 38 | 87 |
| Adam Zimmerman | 2016-2022 | 48 | 44 | .522 | 3.39 | 121 | 121 | 5 | 0 | 0 | 779.2 | 770 | 294 | 61 | 182 | 514 |
| Randy Zimmerman | 2026-2034 | 2 | 8 | .200 | 4.13 | 39 | 9 | 1 | 0 | 6 | 93.2 | 87 | 43 | 9 | 32 | 101 |
| Ju-wei Zong | 2026-2040 | 58 | 50 | .537 | 2.96 | 188 | 129 | 15 | 6 | 25 | 938.1 | 768 | 309 | 68 | 280 | 890 |
| Huibert Zwager | 2016-2022 | 32 | 45 | .416 | 5.49 | 106 | 106 | 0 | 0 | 0 | 549.0 | 687 | 335 | 58 | 152 | 339 |
| Eugenio Zúñiga | 2024-2029 | 0 | 0 | .000 | 108.00 | 1 | 0 | 0 | 0 | 0 | 0.1 | 3 | 4 | 1 | 1 | 0 |
