| Date | Rider | Age | Ride Time | MPH | Handicap | Handicap Time ▲ | Course | Miles | Rank Raw | Rank Handicap | Note |
| 2010-08-10 | Kostenko, Kern | 48 | 01:07:53.00 | 21.96 | 1.059 | 01:04:06.00 | N Stevens 40 K | 24.85 | 1 | 1 | Raw PR |
| 2010-07-13 | Kostenko, Kern | 48 | 01:08:40.00 | 21.71 | 1.059 | 01:04:50.00 | N Stevens 40 K | 24.85 | 2 | 2 | |
| 2010-06-22 | Kostenko, Kern | 48 | 01:12:08.00 | 20.67 | 1.059 | 01:08:07.00 | N Stevens 40 K | 24.85 | 3 | 3 | |
| 2010-05-18 | Kostenko, Kern | 48 | 01:14:32.00 | 20.00 | 1.059 | 01:10:23.00 | N Stevens 40 K | 24.85 | 4 | 4 | |
| 2011-07-12 | Kostenko, Kern | 49 | 01:15:47.00 | 19.67 | 1.063 | 01:11:18.00 | N Stevens 40 K | 24.85 | 5 | 5 | |
| 2011-08-09 | Kostenko, Kern | 49 | 01:15:58.00 | 19.63 | 1.063 | 01:11:28.00 | N Stevens 40 K | 24.85 | 6 | 6 | |
| 2013-04-16 | Kostenko, Kern | 51 | 01:17:28.00 | 19.25 | 1.071 | 01:12:20.00 | N Stevens 40 K | 24.85 | 8 | 7 | |
| 2010-04-20 | Kostenko, Kern | 48 | 01:17:00.00 | 19.36 | 1.059 | 01:12:43.00 | N Stevens 40 K | 24.85 | 7 | 8 | |
| 2013-08-06 | Kostenko, Kern | 51 | 01:21:20.00 | 18.33 | 1.071 | 01:15:56.00 | N Stevens 40 K | 24.85 | 10 | 9 | |
| 2011-06-14 | Kostenko, Kern | 49 | 01:21:08.00 | 18.38 | 1.063 | 01:16:19.00 | N Stevens 40 K | 24.85 | 9 | 10 |