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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jim Umbarger | 1976-1986 | 24 | 28 | .462 | 4.56 | 101 | 75 | 7 | 1 | 0 | 517.0 | 576 | 262 | 52 | 184 | 236 |
| Pat Underwood | 1979-1983 | 1 | 3 | .250 | 4.86 | 29 | 0 | 0 | 0 | 0 | 33.1 | 36 | 18 | 4 | 8 | 18 |
| Tom Underwood | 1976-1983 | 39 | 44 | .470 | 4.21 | 124 | 103 | 17 | 2 | 1 | 761.0 | 754 | 356 | 81 | 296 | 384 |
| Tom Urbani | 1994-1996 | 7 | 5 | .583 | 4.66 | 140 | 0 | 0 | 0 | 1 | 295.2 | 307 | 153 | 64 | 102 | 228 |
| Ugueth Urbina | 1997-1997 | 6 | 10 | .375 | 5.04 | 20 | 20 | 0 | 0 | 0 | 109.0 | 98 | 61 | 31 | 34 | 140 |
| John Urrea | 1977-1981 | 26 | 30 | .464 | 3.99 | 188 | 20 | 1 | 0 | 50 | 404.0 | 395 | 179 | 42 | 122 | 237 |
