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 | |||||
|---|---|---|---|---|---|---|---|
| 26-09 | 25 |  UCI World Championship Mendrisio U23 (U23) | |||||
 Tour of Ireland (2.1) | |||||||
| 30 |  Standings | ||||||
| 23-08 | 31 | Stage 3Bantry - Cork (185.0km) | |||||
| 22-08 | 68 | Stage 2Clonmel - Killarney (196.0km) | |||||
| 21-08 | 48 | Stage 1Powerscourt - Waterford (196.0km) | |||||
| 10-01 | 3 | National Road Championships - Australia U23 (U23) | |||||
Teams
Victories
| This year | 1 |
| Total | 2 |