| Date | Rider | Age | Ride Time | MPH | Handicap | Handicap Time ▲ | Course | Miles | Rank Raw | Rank Handicap | Note |
| 2009-07-07 | Mahaffey, Dennis | 64 | 00:33:55.00 | 17.69 | 1.154 | 00:29:23.00 | Jacobs 10 mile | 10.00 | 1 | 1 | Raw PR |
| 2008-06-10 | Mahaffey, Dennis | 63 | 00:34:57.00 | 17.17 | 1.145 | 00:30:31.00 | Jacobs 10 mile | 10.00 | 2 | 2 | |
| 2008-07-08 | Mahaffey, Dennis | 63 | 00:35:10.00 | 17.06 | 1.145 | 00:30:43.00 | Jacobs 10 mile | 10.00 | 3 | 3 | |
| 2008-09-16 | Mahaffey, Dennis | 63 | 00:35:42.00 | 16.81 | 1.145 | 00:31:11.00 | Jacobs 10 mile | 10.00 | 4 | 4 | |
| 2008-08-05 | Mahaffey, Dennis | 63 | 00:37:36.00 | 15.96 | 1.145 | 00:32:50.00 | Jacobs 10 mile | 10.00 | 5 | 5 | |
| 2009-04-14 | Mahaffey, Dennis | 64 | 00:38:05.00 | 15.75 | 1.154 | 00:33:00.00 | Jacobs 10 mile | 10.00 | 6 | 6 | |
| 2008-05-13 | Mahaffey, Dennis | 63 | 00:38:23.00 | 15.63 | 1.145 | 00:33:31.00 | Jacobs 10 mile | 10.00 | 7 | 7 | |
| 2009-05-12 | Mahaffey, Dennis | 64 | 00:40:01.00 | 14.99 | 1.154 | 00:34:41.00 | Jacobs 10 mile | 10.00 | 8 | 8 | |
| 2008-04-15 | Mahaffey, Dennis | 63 | 00:43:50.00 | 13.69 | 1.145 | 00:38:17.00 | Jacobs 10 mile | 10.00 | 9 | 9 | |
| 2010-04-13 | Mahaffey, Dennis | 65 | 00:45:06.00 | 13.30 | 1.168 | 00:38:37.00 | Jacobs 10 mile | 10.00 | 10 | 10 |