Result History for Mary Delong
| Race Name | Race Date | Finish Time | Overall Place | Gender Place | Age | Age Group | Age Group Place |
| 10K | 2018-09-09 | 03:06:23 | 34/67 | 12/33 | 52 | 50 - 59 | 2/9 |
| 10K | 2017-09-10 | 03:04:03 | 24/62 | 12/33 | 51 | 50 - 59 | 1/3 |
| 10K | 2016-08-14 | 03:14:40 | 40/72 | 16/38 | 50 | 50 - 59 | 2/8 |
| 2.4 Mile Non-Wetsuit | 2015-08-23 | 01:11:04 | 26/60 | 17/36 | 49 | 40 - 49 | 5/8 |