Below is a list of runners who have reached 100 marathons in 2025 along with the event and date this milestone was reached.
| Name | Event | Date |
| Stephen Dunham | Enigma Winter Day 2 | 05-Jan-25 |
| Alan Barnes | Phoenix Ninja Run | 18-Jan-25 |
| David Irwin | Enigma Quadzilla Day 3 | 08-Feb-25 |
| James Taylor | Phoenix Valentines Run | 14-Feb-25 |
| Gavin Opperman | Phoenix Blue Bridge Friday | 07-Mar-25 |
| Stephanie Wallace | London | 27-Apr-25 |