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| First Basemen Single-Season Assists Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | Assists | IP | Year | Career Leaderboard |
| 1. | Ron Brenton | 149 | 1326.7 | 2002 | |
| 2. | Antonio Herrera | 148 | 1443.0 | 2010 | |
| 3. | Pedro Peņa | 145 | 1266.0 | 2010 | |
| 4. | Randy Eastwood | 140 | 1250.0 | 2029 | |
| 5. | Antonio Herrera | 139 | 1474.3 | 2011 | |
| 6. | Winston Pearl | 137 | 1370.7 | 2022 | |
| 7. | Albert Ortega | 136 | 1265.7 | 2007 | |
| 8. | Leonardo De La Rosa | 133 | 1312.0 | 2029 | |
| 9. | Carl Wesolowski | 131 | 1342.7 | 2008 | |
| 10. | Dan Staub | 130 | 1347.3 | 2014 | |
| 11. | Winston Pearl | 129 | 1433.0 | 2023 | |
| 12. | Ed Abrams | 128 | 1263.0 | 2019 | |
| Antonio Herrera | 128 | 1450.3 | 2012 | ||
| Felix Atkinson | 128 | 1332.7 | 2003 | ||
| 15. | James Roselli | 127 | 1344.7 | 2004 | |
| 16. | Sabino Mocasque | 126 | 1316.0 | 2025 | |
| Jason Wallin | 126 | 1323.0 | 2015 | ||
| Ben Perez | 126 | 1348.0 | 2004 | ||
| 19. | Adolph Egerton | 125 | 1378.0 | 2027 | |
| Jarvis Holeman | 125 | 1370.3 | 2012 | ||
| 21. | Tony Romo | 123 | 1303.3 | 2023 | |
| Howard Lovecraft | 123 | 1280.7 | 2020 | ||
| Pedro Peņa | 123 | 1322.7 | 2011 | ||
| James Roselli | 123 | 1435.7 | 2001 | ||
| Hugo Grimm | 123 | 1380.3 | 2000 | ||
| 26. | Jerry Rivers | 122 | 1320.3 | 2021 | |
| Sammy Gillespie | 122 | 1246.3 | 2019 | ||
| Dan Staub | 122 | 1302.0 | 2012 | ||
| 29. | Felix Perez | 121 | 1291.3 | 2029 | |
| John Ransom | 121 | 1311.3 | 2021 | ||
| John Palomar | 121 | 1294.3 | 2018 | ||
| Jose Rojas | 121 | 1304.7 | 2012 | ||
| Jarvis Holeman | 121 | 1447.7 | 2011 | ||
| Antonio Herrera | 121 | 1458.0 | 2009 | ||
| Jacinto Leon | 121 | 1236.0 | 2005 | ||
| James Persons | 121 | 1163.7 | 2002 | ||
| Felix Atkinson | 121 | 1384.7 | 2001 | ||
| Mohammed Cardenas | 121 | 1402.0 | 2000 | ||
| 39. | Aaron Ontireros | 120 | 1240.0 | 2027 | |
| Sabino Mocasque | 120 | 1301.0 | 2023 | ||
| Chet Rinehart | 120 | 1273.7 | 2010 | ||
| Sidney Sedgwick | 120 | 1310.7 | 2004 | ||
| 43. | Christopher Babineau | 119 | 1308.0 | 2026 | |
| Jerry Rivers | 119 | 1264.0 | 2023 | ||
| Cassius Money | 119 | 1286.3 | 2017 | ||
| Bobby Scott | 119 | 1229.3 | 2011 | ||
| Donald Birnbaum | 119 | 1276.7 | 2010 | ||
| Ray Festa | 119 | 1286.7 | 2007 | ||
| Nobukazu Takemura | 119 | 1462.3 | 2004 | ||
| Ron Brenton | 119 | 1287.7 | 2003 | ||
| Ben Perez | 119 | 1294.3 | 2001 | ||
| 52. | Michael Cadiz | 118 | 1345.0 | 2029 | |
| Abran Meniivar | 118 | 1182.0 | 2029 | ||
| Salvador Pujals | 118 | 1187.3 | 2028 | ||
| Aaron Ontireros | 118 | 1211.7 | 2026 | ||
| James Schlemmer | 118 | 1460.3 | 2024 | ||
| Ron Brenton | 118 | 1313.3 | 2007 | ||
| 58. | Earl Lewis | 117 | 1373.3 | 2026 | |
| Richard Willie | 117 | 1277.7 | 2004 | ||
| Antonio Herrera | 117 | 1229.7 | 2002 | ||
| 61. | Ryan Rich | 116 | 1269.5 | 2029 | |
| Juan Lueras | 116 | 1327.0 | 2028 | ||
| Cole Watterson | 116 | 1241.3 | 2023 | ||
| Sabino Mocasque | 116 | 1248.0 | 2022 | ||
| Jacks Nito | 116 | 1313.3 | 2020 | ||
| James Schlemmer | 116 | 1322.3 | 2019 | ||
| Jonas Diaz | 116 | 1419.7 | 2017 | ||
| Kenneth Herman | 116 | 1242.7 | 2014 | ||
| Jose Rojas | 116 | 1280.7 | 2013 | ||
| Aragorn King * | 116 | 1328.3 | 2011 | ||
| Val Echols | 116 | 1247.7 | 2010 | ||
| Carl Wesolowski | 116 | 1353.0 | 2007 | ||
| Albert Ortega | 116 | 1256.3 | 2006 | ||
| Graham Brown | 116 | 1346.7 | 2001 | ||
| James Roselli | 116 | 1071.3 | 2000 | ||
| 76. | Steve McLaughlin | 115 | 1382.0 | 2019 | |
| Mohammed Cardenas | 115 | 1265.3 | 2004 | ||
| Sidney Sedgwick | 115 | 1305.3 | 2003 | ||
| 79. | Calvin Liverpool | 114 | 1189.3 | 2029 | |
| Jerry Rivers | 114 | 1369.3 | 2022 | ||
| Ray Festa | 114 | 1218.3 | 2009 | ||
| Chet Rinehart | 114 | 1312.0 | 2007 | ||
| 83. | Salvador Pujals | 113 | 1246.3 | 2029 | |
| Aaron Ontireros | 113 | 1155.3 | 2025 | ||
| James Schlemmer | 113 | 1306.0 | 2020 | ||
| Denver Robinson | 113 | 1263.3 | 2016 | ||
| Howard Lovecraft | 113 | 1318.0 | 2014 | ||
| Jason Wallin | 113 | 1292.3 | 2014 | ||
| Johnny Carmona | 113 | 1320.3 | 2012 | ||
| Jason Wallin | 113 | 1310.7 | 2012 | ||
| Jose Rojas | 113 | 1308.3 | 2011 | ||
| Gerardo Mauro | 113 | 1266.0 | 2011 | ||
| Aragorn King * | 113 | 1214.7 | 2006 | ||
| Felix Atkinson | 113 | 1295.3 | 2002 | ||
| Ben Perez | 113 | 1274.0 | 2002 | ||
| Ron Brenton | 113 | 1428.3 | 2001 | ||
| 97. | Ernie Lester | 112 | 1294.0 | 2026 | |
| Ed Abrams | 112 | 1293.7 | 2020 | ||
| Aragorn King * | 112 | 1328.3 | 2014 | ||
| Howard Lovecraft | 112 | 1295.0 | 2013 |
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