Recent editions/amendments highlighted
| What | No/Time | When | Where | Who |
| Most Marathons in a Career | 638 | 18Nov07 | Cornish | Brian Mills |
| Most Marathons in a Year (Calendar Year) |
87 74 |
16Mar91/15Mar92 1991 | UK, Europe, USA | Steve Edwards |
| Fastest Marathon | ? | ? | ? | ? |
| Slowest Marathon | ? | ? | ? | ? |
| Most Countries | 50+ | to date | n/a | Tad Lancucki |
| Most Counties of UK | 54 | 10Oct04 | Anglesey | Steve Edwards |
| Most USA States | 50 | 09Dec07 | Honolulu | Roger Biggs |
| Most Continents (In the same year) | 7 |
09Oct05 16Oct05 |
Melbourne Beijing | Roger Biggs |
| Long Standing Marathons (20+) | approx 50 | ?? | ?? | Tad Lancucki |
| Lowest Marathon | ? | ? | ? | ? |
| Highest Marathon | 17000ft | 26Nov93 | Everest | Ivan Field / Roger Biggs |
| Most Northerly | 78 north | 1999 | Spitsbergen | Tad Lancucki & others |
| Most Southerly | 64 5 south | 201 | Antarctica | Osy Waye |
| Most Easterly | ? | ? | ? | ? |
| Most Westerly | ? | ? | ? | ? |