Kalendaryo ng Karera Winton Motor Raceway 2003
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 23 Mayo - 25 Mayo | Supercars Championship Natapos | Round 5 | |
| 23 Mayo - 25 Mayo | Porsche Carrera Cup Australia Natapos | Round 3 |
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 23 Mayo - 25 Mayo | Supercars Championship Natapos | Round 5 | |
| 23 Mayo - 25 Mayo | Porsche Carrera Cup Australia Natapos | Round 3 |