| Runner | Event | Time | Distance | Position | Date |
|---|---|---|---|---|---|
| Alison Cooper | Oakley 20 | 02:59:29 | 20.0miles | 397 (7 FV55) | 24-03-2019 |
| Kat Miles | Twin Lakes 20 | 02:59:35 | 20.0miles | 164 (18 FV35) | 19-03-2023 |
| Paul Reader | Oakley 20 | 02:59:52 | 20.0miles | (MV40) | 05-04-2009 |
| Dawn Parr | Oakley 20 | 03:00:14 | 20.0miles | 460 (0) PB | 29-03-2015 |
| Niki Serjeant | Tarpley 20 | 03:01:02 | 20.0miles | 189 PB (5 FV55) | 27-02-2022 |
| David Irwin | Oakley 20 | 03:01:08 | 20.0miles | 492 (MV45) | 28-03-2010 |
| Jo Dowle | Oakley 20 | 03:01:42 | 20.0miles | (0) PB | 28-03-2004 |
| Bob Thomson | Wymondham | 03:02:01 | 20.0miles | (0) PB | 07-03-2004 |
| Maurice Hemingway | Oakley 20 | 03:02:01 | 20.0miles | 194 (3 MV65) | 26-03-2023 |
| Oakley 20 | 03:02:04 | 20.0miles | 438 (F) PB | 02-04-2006 | |
| Amie Gough | Oakley 20 | 03:02:41 | 20.0miles | 544 (F) | 01-04-2012 |
| Lesley Carroll | Oakley 20 | 03:02:46 | 20.0miles | 546 PB (28 FV45) | 01-04-2012 |
| Maurice Hemingway | Twin Lakes 20 | 03:02:57 | 20.0miles | 189 (4 MV60) | 19-03-2023 |
| Alison Cooper | Oakley 20 | 03:03:23 | 20.0miles | 221 (2 FV60) | 24-03-2024 |
| Lucy Boothby | Oakley 20 | 03:03:40 | 20.0miles | 516 (FV40) | 27-03-2011 |
| Barbara Reading | Oakley 20 | 03:03:45 | 20.0miles | (0) | 28-03-2004 |
| Barbara Reading | Bury 20 | 03:03:45 | 20.0miles | (0) | 27-02-2005 |
| Maurice Hemingway | Dunstable Downs 20m Trail | 03:04:15 | 20.0miles | 8 (1 MV55) | 14-09-2014 |
| Dawn Parr | Oakley 20 | 03:04:38 | 20.0miles | 510 (FV40) PB | 23-03-2014 |
| Maurice Hemingway | Dunstable Downs 20m | 03:04:56 | 20.0miles | 18/80 (1 MV60) | 01-09-2019 |
| Sally Hewitt | Oakley 20 | 03:04:59 | 20.0miles | 511 (FV45) PB | 05-04-2009 |
| Sam Bathgate | Oakley 20 | 03:05:17 | 20.0miles | 568 (F) | 01-04-2012 |
| Hazel Ferreira | Oakley 20 | 03:05:19 | 20.0miles | 547 (F) | 27-03-2011 |
| Katy Davies | Oakley 20 | 03:05:20 | 20.0miles | 466 PB (? FV35) | 24-03-2019 |
| Andy Anderson | Oakley 20 | 03:05:33 | 20.0miles | 474 (MV50) | 16-03-2008 |