Winton Motor Raceway 2003 Race Calendar
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| May 23 - May 25 | Supercars Championship Finished | Round 5 | |
| May 23 - May 25 | Porsche Carrera Cup Australia Finished | Round 3 |
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| May 23 - May 25 | Supercars Championship Finished | Round 5 | |
| May 23 - May 25 | Porsche Carrera Cup Australia Finished | Round 3 |