| Career - Worst On-Base | |||
| Rk | Player Name | Totals | |
| 1 | Javier Baez | 0.265 | |
| 2 | Mike Zunino | 0.274 | |
| 3 | Yan Gomes | 0.279 | |
| 4 | Cal Raleigh | 0.285 | |
| 5 | Tyler Flowers | 0.287 | |
| 6 | Todd Frazier | 0.291 | |
| 7 | Chase Headley | 0.299 | |
| 8 | Christian Vazquez | 0.299 | |
| 9 | Brandon Marsh | 0.307 | |
| 10 | Ramon Laureano | 0.312 | |
| 11 | Kevin Kiermaier | 0.315 | |
| 12 | Pablo Sandoval | 0.317 | |
| 13 | Josh Naylor | 0.318 | |
| 14 | Jason Heyward | 0.321 | |
| 15 | J.D. Martinez | 0.323 | |
| 16 | Robinson Cano | 0.326 | |
| 17 | Daniel Murphy | 0.332 | |
| 18 | Justin Smoak | 0.337 | |
| 19 | Christian Yelich | 0.339 | |
| 20 | Brendan Donovan | 0.343 | |
| 21 | Jose Martinez | 0.346 | |
| 22 | Andrew Benintendi | 0.350 | |
| 23 | Anthony Rendon | 0.366 | |
| Single Season - Worst On-Base | |||||
| Rk | Player Name | Totals | Year | ||
| 1 | Javier Baez | 0.189 | 2021 | ||
| 2 | Todd Frazier | 0.255 | 2016 | ||
| 3 | Javier Baez | 0.256 | 2023 | ||
| 4 | Jurickson Profar | 0.261 | 2014 | ||
| 5 | Javier Baez | 0.265 | 2022 | ||
| 6 | Javier Baez | 0.266 | 2017 | ||
| 7 | Cal Raleigh | 0.267 | 2023 | ||
| 8 | Josh Reddick | 0.268 | 2014 | ||
| 9 | Ian Desmond | 0.268 | 2015 | ||
| 10 | Brandon Marsh | 0.268 | 2023 | ||
| 11 | Tim Anderson | 0.271 | 2017 | ||
| 12 | Kevin Kiermaier | 0.271 | 2023 | ||
| 13 | Yan Gomes | 0.277 | 2019 | ||
| 14 | Tyler Flowers | 0.279 | 2017 | ||
| 15 | Victor Reyes | 0.282 | 2020 | ||
| 16 | Ramon Laureano | 0.283 | 2021 | ||
| 17 | J.D. Martinez | 0.286 | 2016 | ||
| 18 | Javier Baez | 0.296 | 2019 | ||
| 19 | Anthony Volpe | 0.298 | 2024 | ||
| 20 | Chase Headley | 0.303 | 2014 | ||
| 21 | Javier Baez | 0.305 | 2020 | ||
| 22 | Joe Mauer | 0.308 | 2016 | ||
| 23 | A.J. Pierzynski | 0.308 | 2016 | ||
| 24 | Christian Vazquez | 0.308 | 2020 | ||
| 25 | Ramon Laureano | 0.309 | 2020 | ||