Info
| Last name | O'Brien |
| First name | Mark |
| Nationality |  Australia |
| Date of birth | 16-09-1987 |
| Age | 38 |
| Place of birth | Horsham |
| Date | Rank | Race |
|---|---|---|
| 17-08 | 17 | Australian National Championships CX (CN) |
| 07-01 | 11 | National Road Championships - Australia (CN) |
Teams
Victories
| This year | 1 |
| Total | 2 |