Info
| Last name | Grierson |
| First name | Josiah |
| Nationality |  Australia |
| Date of birth | 19-03-2005 |
| Age | 21 |
| Date | Rank | Race | |
|---|---|---|---|
| 24-04 | DNF |  Liberazione Juniors di Roma (1.1) | |
| Eroica Juniores - Nations' Cup (2.NCUP) | |||
| 21-04 | 168 | Stage 2Siena - Poggibonsi (70.0km) | |
| 21-04 | Stage 1Castelnuovo Berardenga - Rapolano Terme (11.0km) | ||
| 01-04 | 3 | Oceania Cycling Championships U19 (CC) | |
| 09-01 | 19 | National Road Championships - Australia TT U19 (CN) | |
| 07-01 | 32 | National Road Championships - Australia U19 (CN) | |