| Date | Rider | Age | Ride Time | MPH | Handicap | Handicap Time ▲ | Course | Miles | Rank Raw | Rank Handicap | Note |
| 2016-07-12 | Withers, Porter | 17 | 01:03:31.00 | 23.47 | 1.020 | 01:02:16.00 | N Stevens 40 K | 24.85 | 1 | 1 | Raw PR |
| 2015-04-21 | Withers, Porter | 16 | 01:06:29.00 | 22.43 | 1.052 | 01:03:12.00 | N Stevens 40 K | 24.85 | 2 | 2 | |
| 2016-04-19 | Withers, Porter | 17 | 01:11:20.00 | 20.90 | 1.020 | 01:09:56.00 | N Stevens 40 K | 24.85 | 3 | 3 | |
| 2016-05-17 | Withers, Porter | 17 | 01:12:32.00 | 20.56 | 1.020 | 01:11:07.00 | N Stevens 40 K | 24.85 | 5 | 4 | |
| 2017-06-13 | Withers, Porter | 18 | 01:11:45.00 | 20.78 | 1.000 | 01:11:45.00 | N Stevens 40 K | 24.85 | 4 | 5 | |
| 2014-06-17 | Withers, Porter | 15 | 01:25:15.00 | 17.49 | 1.095 | 01:17:51.00 | N Stevens 40 K | 24.85 | 7 | 6 | |
| 2017-04-18 | Withers, Porter | 18 | 01:20:54.00 | 18.43 | 1.000 | 01:20:54.00 | N Stevens 40 K | 24.85 | 6 | 7 | |
| 2016-06-14 | Withers, Porter | 17 | N Stevens 40 K | 24.85 | 0 | 0 | Free #2 |