| Mourne Mountain Marathon | Sat 15th Sep 2007 | 4/- | 06:40:28 | See all Deirdre Ni Challanain at Mourne Mountain Marathon |
| Bamford | Wed 17th Jul 2002 | 137/227 | 00:41:00 | See all Deirdre Ni Challanain at Bamford |
| Alport | Wed 9th Jun 1993 | 30/35 | 01:34:53 | See all Deirdre Ni Challanain at Alport |