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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Abdul-Nasir Rabah | 2034-2034 | 2 | 2 | .500 | 5.40 | 6 | 6 | 0 | 0 | 0 | 35.0 | 42 | 21 | 5 | 9 | 14 |
| Filip Radyuhin | 2030-2030 | 12 | 5 | .706 | 3.15 | 21 | 21 | 3 | 1 | 0 | 151.2 | 111 | 53 | 10 | 65 | 128 |
| Aldo Raine | 2033-2033 | 5 | 7 | .417 | 4.36 | 24 | 24 | 0 | 0 | 0 | 115.2 | 128 | 56 | 9 | 47 | 91 |
| Bartolo Ramírez | 2025-2027 | 6 | 4 | .600 | 4.99 | 40 | 0 | 0 | 0 | 4 | 83.0 | 93 | 46 | 5 | 59 | 63 |
| Bartolo Ramírez | 2019-2030 | 20 | 19 | .513 | 3.37 | 47 | 47 | 1 | 0 | 0 | 302.0 | 273 | 113 | 20 | 134 | 262 |
| Cipriano Ramírez | 2016-2016 | 2 | 0 | 1.000 | 4.15 | 13 | 0 | 0 | 0 | 2 | 17.1 | 18 | 8 | 4 | 6 | 17 |
| Fernando Ramírez | 2025-2033 | 16 | 17 | .485 | 3.44 | 55 | 38 | 2 | 0 | 2 | 272.1 | 237 | 104 | 20 | 106 | 213 |
| José Ramírez | 2015-2019 | 7 | 12 | .368 | 4.09 | 33 | 26 | 1 | 0 | 3 | 169.1 | 159 | 77 | 19 | 60 | 175 |
| Luis Ramírez | 2021-2022 | 0 | 0 | .000 | 5.40 | 7 | 0 | 0 | 0 | 2 | 13.1 | 8 | 8 | 1 | 16 | 14 |
| Miguel Ramírez | 2026-2029 | 2 | 14 | .125 | 5.68 | 29 | 17 | 0 | 0 | 0 | 122.0 | 134 | 77 | 8 | 77 | 82 |
| Norberto Ramírez | 2026-2028 | 1 | 8 | .111 | 7.32 | 36 | 21 | 0 | 0 | 2 | 123.0 | 149 | 100 | 13 | 92 | 53 |
| Norberto Ramírez | 2015-2017 | 6 | 14 | .300 | 5.84 | 39 | 31 | 0 | 0 | 0 | 166.1 | 224 | 108 | 21 | 75 | 149 |
| Rubén Ramírez | 2019-2019 | 0 | 1 | .000 | 4.50 | 1 | 0 | 0 | 0 | 0 | 2.0 | 2 | 1 | 1 | 0 | 3 |
| Santiago Ramírez | 2030-2034 | 25 | 18 | .581 | 4.54 | 77 | 68 | 0 | 0 | 0 | 408.0 | 401 | 206 | 45 | 168 | 307 |
| Alejandro Ramos | 2027-2027 | 2 | 0 | 1.000 | 1.57 | 3 | 3 | 0 | 0 | 0 | 23.0 | 24 | 4 | 0 | 7 | 19 |
| Augusto Ramos | 2025-2030 | 3 | 0 | 1.000 | 2.53 | 3 | 3 | 0 | 0 | 0 | 21.1 | 20 | 6 | 2 | 5 | 16 |
| Carlos Ramos | 2022-2022 | 10 | 10 | .500 | 3.97 | 25 | 25 | 0 | 0 | 0 | 165.2 | 169 | 73 | 7 | 59 | 87 |
| Esteban Ramos | 2028-2030 | 7 | 0 | 1.000 | 2.10 | 65 | 0 | 0 | 0 | 11 | 98.2 | 67 | 23 | 4 | 48 | 80 |
| Freddy Ramos | 2020-2022 | 0 | 1 | .000 | 4.09 | 27 | 0 | 0 | 0 | 0 | 55.0 | 49 | 25 | 4 | 28 | 46 |
| Luis Ramos | 2023-2028 | 2 | 3 | .400 | 2.45 | 33 | 0 | 0 | 0 | 4 | 36.2 | 38 | 10 | 0 | 16 | 28 |
| Jamie Randall | 2015-2015 | 3 | 2 | .600 | 8.75 | 38 | 0 | 0 | 0 | 0 | 36.0 | 51 | 35 | 6 | 23 | 34 |
| Nate Randall | 2033-2034 | 7 | 11 | .389 | 5.83 | 24 | 24 | 1 | 1 | 0 | 139.0 | 145 | 90 | 12 | 79 | 91 |
| Bryce Randolph | 2019-2020 | 2 | 1 | .667 | 4.74 | 42 | 0 | 0 | 0 | 0 | 62.2 | 76 | 33 | 3 | 28 | 53 |
| Rodrigo Rangel | 2030-2030 | 1 | 3 | .250 | 5.25 | 13 | 0 | 0 | 0 | 5 | 12.0 | 14 | 7 | 1 | 8 | 6 |
| Oriol Razo | 2029-2030 | 8 | 7 | .533 | 3.33 | 29 | 29 | 0 | 0 | 0 | 165.0 | 129 | 61 | 8 | 87 | 134 |
| Zach Rediker | 2025-2025 | 0 | 17 | .000 | 7.37 | 20 | 20 | 0 | 0 | 0 | 108.2 | 143 | 89 | 5 | 54 | 60 |
| Bob Reece | 2024-2030 | 7 | 15 | .318 | 5.57 | 84 | 21 | 0 | 0 | 5 | 194.0 | 254 | 120 | 13 | 113 | 109 |
| Joseph Reed | 2020-2020 | 0 | 2 | .000 | 6.75 | 3 | 3 | 0 | 0 | 0 | 16.0 | 13 | 12 | 4 | 9 | 12 |
| Zane Reed | 2018-2020 | 5 | 6 | .455 | 7.30 | 28 | 2 | 0 | 0 | 4 | 49.1 | 55 | 40 | 10 | 28 | 48 |
| Blake Reeves | 2030-2030 | 0 | 0 | .000 | 4.66 | 4 | 0 | 0 | 0 | 2 | 9.2 | 8 | 5 | 1 | 6 | 6 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Gil Reeves | 2024-2030 | 5 | 6 | .455 | 4.22 | 50 | 9 | 1 | 0 | 5 | 130.0 | 129 | 61 | 12 | 57 | 111 |
| Gabriel Rentería | 2027-2029 | 0 | 0 | .000 | 5.03 | 11 | 0 | 0 | 0 | 0 | 19.2 | 24 | 11 | 2 | 11 | 8 |
| Charles Repka | 2030-2034 | 7 | 9 | .438 | 5.73 | 98 | 5 | 0 | 0 | 1 | 224.2 | 263 | 143 | 16 | 147 | 122 |
| Enrico Reséndez | 2019-2020 | 3 | 10 | .231 | 7.91 | 50 | 4 | 1 | 0 | 20 | 60.1 | 85 | 53 | 8 | 35 | 57 |
| Ronaldo Rey | 2020-2020 | 0 | 0 | .000 | 3.38 | 2 | 0 | 0 | 0 | 0 | 2.2 | 5 | 1 | 0 | 0 | 3 |
| Sergio Rey | 2016-2016 | 0 | 0 | .000 | 4.91 | 3 | 0 | 0 | 0 | 0 | 3.2 | 5 | 2 | 2 | 2 | 4 |
| Álex Reyes | 2020-2025 | 7 | 7 | .500 | 4.32 | 79 | 10 | 0 | 0 | 3 | 162.2 | 151 | 78 | 14 | 102 | 139 |
| Javier Reyes | 2022-2024 | 5 | 4 | .556 | 5.89 | 45 | 0 | 0 | 0 | 3 | 65.2 | 85 | 43 | 7 | 34 | 34 |
| Juan Reyes | 2028-2032 | 8 | 9 | .471 | 3.77 | 25 | 21 | 0 | 0 | 0 | 133.2 | 117 | 56 | 10 | 69 | 94 |
| Sergio Reyes | 2029-2031 | 7 | 21 | .250 | 5.65 | 44 | 36 | 2 | 0 | 0 | 255.0 | 287 | 160 | 20 | 114 | 136 |
| Justin Reynolds | 2021-2028 | 2 | 1 | .667 | 3.09 | 17 | 0 | 0 | 0 | 5 | 23.1 | 21 | 8 | 0 | 11 | 18 |
| Rémi Ribeiro | 2029-2030 | 7 | 6 | .538 | 3.78 | 14 | 14 | 2 | 1 | 0 | 104.2 | 103 | 44 | 11 | 38 | 95 |
| Harvey Richards | 2016-2026 | 12 | 12 | .500 | 4.19 | 62 | 37 | 1 | 0 | 2 | 270.1 | 256 | 126 | 20 | 123 | 225 |
| Dustin Richmond | 2025-2025 | 4 | 3 | .571 | 4.87 | 15 | 9 | 0 | 0 | 0 | 57.1 | 55 | 31 | 2 | 33 | 39 |
| José Rico | 2020-2022 | 5 | 11 | .312 | 4.53 | 28 | 24 | 0 | 0 | 0 | 155.0 | 167 | 78 | 10 | 77 | 136 |
| Hartmann Riedman | 2024-2027 | 23 | 15 | .605 | 3.44 | 69 | 69 | 0 | 0 | 0 | 376.1 | 322 | 144 | 26 | 154 | 332 |
| John Riggleman | 2024-2024 | 0 | 0 | .000 | 2.57 | 6 | 0 | 0 | 0 | 4 | 7.0 | 9 | 2 | 0 | 4 | 5 |
| Dan Riggs | 2015-2024 | 2 | 3 | .400 | 3.71 | 29 | 4 | 0 | 0 | 4 | 53.1 | 51 | 22 | 2 | 28 | 32 |
| John Rigsby | 2033-2033 | 10 | 9 | .526 | 5.03 | 25 | 25 | 4 | 1 | 0 | 164.2 | 191 | 92 | 17 | 67 | 115 |
| Brent Riley | 2015-2025 | 27 | 17 | .614 | 4.56 | 118 | 50 | 1 | 0 | 20 | 357.1 | 373 | 181 | 37 | 126 | 366 |
| Daniel Riley | 2034-2034 | 7 | 9 | .438 | 4.80 | 41 | 5 | 0 | 0 | 2 | 108.2 | 138 | 58 | 4 | 38 | 79 |
| Drake Riley | 2022-2023 | 4 | 4 | .500 | 3.97 | 28 | 4 | 1 | 0 | 11 | 47.2 | 51 | 21 | 3 | 23 | 41 |
| Juan Ríos | 2025-2026 | 15 | 3 | .833 | 2.60 | 68 | 0 | 0 | 0 | 0 | 121.1 | 100 | 35 | 10 | 57 | 131 |
| Octávio Ríos | 2023-2024 | 13 | 18 | .419 | 4.43 | 41 | 41 | 3 | 0 | 0 | 253.2 | 257 | 125 | 22 | 125 | 171 |
| Howard Ritchie | 2021-2022 | 6 | 12 | .333 | 4.77 | 24 | 24 | 0 | 0 | 0 | 139.2 | 166 | 74 | 8 | 65 | 64 |
| Pedro Ritodíaz | 2024-2024 | 0 | 0 | .000 | 0.00 | 2 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 2 | 1 |
| Diego Rivas | 2017-2024 | 3 | 3 | .500 | 8.06 | 59 | 0 | 0 | 0 | 1 | 73.2 | 128 | 66 | 8 | 45 | 46 |
| Jorge Rivas | 2017-2019 | 15 | 18 | .455 | 3.76 | 47 | 42 | 2 | 1 | 0 | 246.2 | 229 | 103 | 22 | 84 | 259 |
| Ángel Rivera | 2020-2025 | 4 | 14 | .222 | 5.79 | 39 | 24 | 3 | 0 | 1 | 169.1 | 209 | 109 | 17 | 60 | 132 |
| Ánibal Rivera | 2023-2023 | 6 | 3 | .667 | 1.93 | 15 | 14 | 0 | 0 | 0 | 93.1 | 80 | 20 | 2 | 41 | 86 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| César Rivera | 2018-2020 | 4 | 6 | .400 | 3.84 | 69 | 6 | 0 | 0 | 21 | 96.0 | 99 | 41 | 10 | 41 | 93 |
| Jesús Rivera | 2020-2024 | 10 | 13 | .435 | 3.57 | 70 | 33 | 3 | 0 | 3 | 234.1 | 208 | 93 | 12 | 94 | 186 |
| Rafael Rivera | 2024-2025 | 15 | 7 | .682 | 3.25 | 36 | 36 | 1 | 1 | 0 | 191.0 | 141 | 69 | 11 | 86 | 158 |
| Víctor Rivero | 2020-2020 | 0 | 0 | .000 | 4.50 | 1 | 0 | 0 | 0 | 0 | 2.0 | 3 | 1 | 0 | 3 | 1 |
| Nick Riviera | 2027-2030 | 10 | 9 | .526 | 3.11 | 106 | 1 | 0 | 0 | 45 | 104.1 | 94 | 36 | 8 | 66 | 101 |
| Carlton Roberts | 2034-2034 | 1 | 4 | .200 | 3.44 | 21 | 0 | 0 | 0 | 0 | 36.2 | 28 | 14 | 0 | 23 | 28 |
| Warren Roberts | 2016-2017 | 7 | 7 | .500 | 6.58 | 23 | 18 | 0 | 0 | 0 | 108.0 | 145 | 79 | 6 | 44 | 74 |
| Doug Robinson | 2022-2024 | 4 | 6 | .400 | 2.63 | 46 | 0 | 0 | 0 | 16 | 51.1 | 54 | 15 | 2 | 23 | 30 |
| Leon Robinson | 2020-2021 | 7 | 5 | .583 | 4.26 | 19 | 14 | 0 | 0 | 0 | 95.0 | 86 | 45 | 5 | 54 | 100 |
| Rory Robinson | 2019-2019 | 0 | 1 | .000 | 2.45 | 6 | 0 | 0 | 0 | 0 | 7.1 | 10 | 2 | 1 | 3 | 10 |
| Alberto Robles | 2018-2030 | 8 | 13 | .381 | 3.92 | 58 | 28 | 4 | 1 | 2 | 209.0 | 201 | 91 | 12 | 98 | 152 |
| Valentín Robles | 2027-2028 | 8 | 8 | .500 | 3.38 | 23 | 23 | 2 | 1 | 0 | 157.1 | 134 | 59 | 15 | 74 | 156 |
| Rob Rocha | 2023-2026 | 9 | 15 | .375 | 3.91 | 97 | 4 | 0 | 0 | 42 | 124.1 | 103 | 54 | 12 | 77 | 129 |
| Mark Roddam | 2031-2031 | 6 | 1 | .857 | 3.51 | 14 | 14 | 0 | 0 | 0 | 82.0 | 67 | 32 | 7 | 37 | 64 |
| Alonso Rodríguez | 2034-2034 | 0 | 1 | .000 | 7.00 | 4 | 0 | 0 | 0 | 1 | 9.0 | 9 | 7 | 2 | 2 | 3 |
| Alonso Rodríguez | 2015-2019 | 18 | 22 | .450 | 4.51 | 96 | 63 | 2 | 0 | 1 | 408.2 | 436 | 205 | 46 | 156 | 403 |
| Alonso Rodríguez | 2027-2031 | 0 | 0 | .000 | 5.40 | 1 | 0 | 0 | 0 | 0 | 1.2 | 1 | 1 | 0 | 0 | 2 |
| António Rodríguez | 2026-2026 | 13 | 6 | .684 | 3.52 | 24 | 24 | 1 | 0 | 0 | 153.1 | 137 | 60 | 6 | 36 | 92 |
| Cristo Rodríguez | 2019-2030 | 0 | 2 | .000 | 5.89 | 14 | 0 | 0 | 0 | 1 | 18.1 | 24 | 12 | 1 | 7 | 15 |
| Cristóbal Rodríguez | 2027-2028 | 0 | 2 | .000 | 2.90 | 17 | 6 | 1 | 0 | 2 | 59.0 | 54 | 19 | 3 | 27 | 32 |
| Cristóbal Rodríguez | 2017-2017 | 1 | 1 | .500 | 9.20 | 48 | 0 | 0 | 0 | 0 | 59.2 | 101 | 61 | 12 | 33 | 66 |
| Emílio Rodríguez | 2020-2023 | 4 | 3 | .571 | 4.80 | 33 | 0 | 0 | 0 | 1 | 69.1 | 81 | 37 | 6 | 47 | 46 |
| Enrico Rodríguez | 2020-2020 | 0 | 0 | .000 | 13.50 | 1 | 1 | 0 | 0 | 0 | 4.2 | 8 | 7 | 1 | 5 | 1 |
| Enrique Rodríguez | 2019-2021 | 3 | 1 | .750 | 4.91 | 25 | 0 | 0 | 0 | 1 | 29.1 | 39 | 16 | 2 | 9 | 13 |
| José Rodríguez | 2015-2019 | 17 | 23 | .425 | 5.86 | 113 | 65 | 0 | 0 | 3 | 430.0 | 502 | 280 | 55 | 186 | 418 |
| Juan Rodríguez | 2027-2028 | 5 | 3 | .625 | 3.80 | 25 | 3 | 1 | 0 | 1 | 47.1 | 39 | 20 | 2 | 19 | 31 |
| Júlio Rodríguez | 2022-2022 | 1 | 0 | 1.000 | 1.12 | 14 | 0 | 0 | 0 | 1 | 16.0 | 12 | 2 | 0 | 1 | 26 |
| Norberto Rodríguez | 2030-2033 | 2 | 2 | .500 | 4.36 | 10 | 6 | 1 | 0 | 0 | 43.1 | 44 | 21 | 3 | 18 | 23 |
| Octávio Rodríguez | 2029-2032 | 21 | 18 | .538 | 4.03 | 68 | 56 | 0 | 0 | 0 | 341.1 | 305 | 153 | 22 | 190 | 347 |
| Octávio Rodríguez | 2015-2017 | 8 | 5 | .615 | 5.09 | 30 | 16 | 0 | 0 | 0 | 120.1 | 135 | 68 | 15 | 56 | 108 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Pedro Rodríguez | 2031-2033 | 10 | 6 | .625 | 3.01 | 78 | 3 | 0 | 0 | 20 | 149.1 | 106 | 50 | 23 | 52 | 212 |
| Pedro Rodríguez | 2023-2023 | 9 | 4 | .692 | 2.38 | 14 | 14 | 0 | 0 | 0 | 83.1 | 55 | 22 | 4 | 40 | 98 |
| Rafael Rodríguez | 2021-2022 | 4 | 9 | .308 | 4.42 | 68 | 0 | 0 | 0 | 20 | 75.1 | 67 | 37 | 7 | 38 | 49 |
| Ramón Rodríguez | 2015-2015 | 0 | 0 | .000 | 0.00 | 4 | 0 | 0 | 0 | 0 | 4.2 | 1 | 0 | 0 | 1 | 3 |
| Raúl Rodríguez | 2020-2020 | 0 | 0 | .000 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Roberto Rodríguez | 2015-2016 | 6 | 9 | .400 | 5.99 | 21 | 20 | 0 | 0 | 0 | 94.2 | 127 | 63 | 14 | 39 | 78 |
| Rubén Rodríguez | 2023-2023 | 0 | 2 | .000 | 2.37 | 27 | 0 | 0 | 0 | 4 | 30.1 | 21 | 8 | 1 | 5 | 28 |
| Rubén Rodríguez | 2016-2021 | 9 | 18 | .333 | 4.86 | 59 | 25 | 3 | 0 | 1 | 216.2 | 249 | 117 | 20 | 108 | 150 |
| Sexto Rodríguez | 2024-2026 | 4 | 2 | .667 | 3.00 | 8 | 8 | 0 | 0 | 0 | 54.0 | 40 | 18 | 1 | 18 | 36 |
| Tyler Rodríguez | 2021-2021 | 0 | 1 | .000 | 4.91 | 9 | 0 | 0 | 0 | 6 | 7.1 | 6 | 4 | 1 | 2 | 8 |
| Martin Rogers | 2020-2020 | 0 | 0 | .000 | 3.86 | 1 | 0 | 0 | 0 | 0 | 4.2 | 5 | 2 | 1 | 2 | 2 |
| Keith Rojas | 2028-2029 | 7 | 1 | .875 | 1.73 | 8 | 8 | 0 | 0 | 0 | 52.0 | 33 | 10 | 2 | 16 | 34 |
| Paco Rojas | 2028-2034 | 14 | 25 | .359 | 4.70 | 116 | 74 | 0 | 0 | 5 | 406.0 | 456 | 212 | 36 | 134 | 270 |
| Ángel Roldán | 2033-2034 | 9 | 7 | .562 | 4.13 | 34 | 21 | 0 | 0 | 0 | 146.0 | 163 | 67 | 11 | 66 | 109 |
| Javier Roldán | 2019-2023 | 25 | 20 | .556 | 3.70 | 66 | 66 | 2 | 0 | 0 | 420.2 | 395 | 173 | 26 | 220 | 379 |
| Sam Rollins | 2020-2020 | 2 | 3 | .400 | 4.50 | 6 | 6 | 0 | 0 | 0 | 38.0 | 44 | 19 | 2 | 19 | 28 |
| Ángelo Román | 2027-2032 | 18 | 24 | .429 | 5.54 | 112 | 31 | 1 | 0 | 8 | 341.1 | 395 | 210 | 36 | 162 | 229 |
| César Román | 2030-2030 | 5 | 1 | .833 | 3.59 | 7 | 7 | 1 | 0 | 0 | 52.2 | 39 | 21 | 5 | 26 | 45 |
| Iván Román | 2016-2018 | 14 | 10 | .583 | 5.83 | 43 | 23 | 0 | 0 | 0 | 137.1 | 177 | 89 | 13 | 52 | 150 |
| Jesús Román | 2016-2016 | 0 | 2 | .000 | 6.58 | 6 | 3 | 0 | 0 | 0 | 26.0 | 29 | 19 | 5 | 10 | 25 |
| Jorge Román | 2019-2019 | 7 | 1 | .875 | 3.40 | 21 | 1 | 0 | 0 | 0 | 42.1 | 36 | 16 | 5 | 16 | 53 |
| Juan Román | 2026-2031 | 0 | 0 | .000 | 13.50 | 1 | 0 | 0 | 0 | 0 | 0.2 | 1 | 1 | 1 | 1 | 0 |
| Cisco Romero | 2019-2022 | 26 | 14 | .650 | 3.47 | 82 | 55 | 5 | 0 | 4 | 404.2 | 406 | 156 | 23 | 167 | 290 |
| Eduardo Romero | 2026-2026 | 0 | 1 | .000 | 7.80 | 6 | 3 | 0 | 0 | 1 | 15.0 | 18 | 13 | 2 | 9 | 6 |
| Júlio Romero | 2029-2033 | 3 | 1 | .750 | 1.93 | 28 | 4 | 0 | 0 | 4 | 60.2 | 50 | 13 | 2 | 20 | 69 |
| Pedro Romero | 2020-2026 | 26 | 36 | .419 | 3.63 | 101 | 98 | 2 | 1 | 0 | 535.2 | 526 | 216 | 31 | 213 | 396 |
| Salvador Romero | 2030-2030 | 1 | 0 | 1.000 | 3.86 | 3 | 0 | 0 | 0 | 0 | 7.0 | 11 | 3 | 0 | 4 | 2 |
| Roberto Roque | 2030-2034 | 30 | 6 | .833 | 3.11 | 104 | 7 | 0 | 0 | 8 | 315.2 | 244 | 109 | 13 | 182 | 231 |
| Ricardo Roquette | 2023-2025 | 11 | 11 | .500 | 4.10 | 64 | 18 | 0 | 0 | 2 | 228.1 | 208 | 104 | 15 | 108 | 211 |
| Héctor Rosado | 2023-2025 | 3 | 5 | .375 | 4.91 | 45 | 0 | 0 | 0 | 1 | 91.2 | 116 | 50 | 12 | 40 | 57 |
| Player | From-To | W | L | Pct | ERA | G | GS | CG | SHO | SV | IP | H | ER | HR | BB | SO |
| Carlos Rosales | 2026-2026 | 1 | 2 | .333 | 2.81 | 12 | 0 | 0 | 0 | 1 | 16.0 | 12 | 5 | 1 | 11 | 16 |
| Francisco Rosales | 2021-2021 | 1 | 2 | .333 | 9.24 | 8 | 0 | 0 | 0 | 0 | 25.1 | 41 | 26 | 1 | 25 | 10 |
| José Rosales | 2034-2034 | 8 | 1 | .889 | 2.24 | 45 | 0 | 0 | 0 | 23 | 52.1 | 45 | 13 | 5 | 20 | 38 |
| Ángel Rosas | 2029-2029 | 2 | 3 | .400 | 4.23 | 5 | 5 | 0 | 0 | 0 | 27.2 | 22 | 13 | 1 | 12 | 24 |
| Tom Rosas | 2017-2019 | 7 | 3 | .700 | 4.93 | 30 | 10 | 0 | 0 | 2 | 95.0 | 105 | 52 | 13 | 34 | 98 |
| Bob Roth | 2027-2027 | 5 | 3 | .625 | 3.57 | 35 | 0 | 0 | 0 | 17 | 40.1 | 40 | 16 | 2 | 24 | 40 |
| Tommy Rowe | 2026-2033 | 17 | 10 | .630 | 4.09 | 133 | 1 | 0 | 0 | 24 | 275.0 | 314 | 125 | 33 | 84 | 185 |
| Evan Roy | 2031-2034 | 1 | 10 | .091 | 6.35 | 56 | 3 | 0 | 0 | 0 | 117.2 | 129 | 83 | 17 | 84 | 101 |
| Barry Rozner | 2032-2032 | 6 | 3 | .667 | 3.14 | 10 | 10 | 0 | 0 | 0 | 71.2 | 54 | 25 | 4 | 25 | 48 |
| António Rúbio | 2029-2029 | 1 | 1 | .500 | 6.75 | 2 | 0 | 0 | 0 | 0 | 4.0 | 4 | 3 | 0 | 1 | 5 |
| Carlos Rúbio | 2025-2025 | 1 | 0 | 1.000 | 0.00 | 11 | 0 | 0 | 0 | 1 | 11.0 | 9 | 0 | 0 | 5 | 12 |
| Gustavo Rúbio | 2019-2020 | 1 | 0 | 1.000 | 0.00 | 18 | 0 | 0 | 0 | 0 | 7.0 | 2 | 0 | 0 | 1 | 8 |
| Alfredo Ruíz | 2026-2029 | 15 | 8 | .652 | 3.62 | 59 | 23 | 1 | 1 | 0 | 194.0 | 187 | 78 | 9 | 112 | 195 |
| Alonso Ruíz | 2029-2031 | 1 | 3 | .250 | 4.83 | 31 | 0 | 0 | 0 | 0 | 69.0 | 72 | 37 | 13 | 30 | 46 |
| Ángel Ruíz | 2025-2025 | 1 | 3 | .250 | 5.02 | 17 | 0 | 0 | 0 | 5 | 28.2 | 26 | 16 | 7 | 8 | 25 |
| Esteban Ruíz | 2023-2023 | 9 | 2 | .818 | 3.36 | 51 | 0 | 0 | 0 | 2 | 75.0 | 62 | 28 | 8 | 19 | 77 |
| Gonzalo Ruíz | 2026-2030 | 10 | 13 | .435 | 4.22 | 101 | 18 | 2 | 1 | 7 | 281.2 | 292 | 132 | 26 | 94 | 179 |
| Héctor Ruíz | 2020-2020 | 0 | 1 | .000 | 1.80 | 6 | 0 | 0 | 0 | 4 | 5.0 | 9 | 1 | 0 | 7 | 3 |
| Manuel Ruíz | 2032-2034 | 3 | 6 | .333 | 6.45 | 19 | 11 | 0 | 0 | 3 | 74.0 | 116 | 53 | 13 | 29 | 44 |
| Rubén Ruíz | 2026-2030 | 5 | 8 | .385 | 5.64 | 72 | 3 | 0 | 0 | 7 | 103.2 | 102 | 65 | 6 | 48 | 86 |
| Jagger Rusconi | 2033-2034 | 2 | 6 | .250 | 3.26 | 39 | 0 | 0 | 0 | 11 | 49.2 | 38 | 18 | 6 | 28 | 45 |
| Mike Russell | 2018-2022 | 21 | 11 | .656 | 3.57 | 173 | 2 | 0 | 0 | 7 | 267.1 | 255 | 106 | 21 | 105 | 230 |
| Doug Ryan | 2016-2024 | 3 | 2 | .600 | 3.18 | 10 | 4 | 1 | 0 | 0 | 45.1 | 45 | 16 | 2 | 11 | 22 |
| Kenny Ryan | 2026-2026 | 2 | 0 | 1.000 | 0.49 | 12 | 0 | 0 | 0 | 1 | 18.1 | 16 | 1 | 1 | 7 | 11 |
