The 2003 Euro Formula 3000 Series was scheduled over 10 rounds and contested over 9 rounds. 10 different teams, 26 different drivers competed. All teams raced with Lola T99/50 chassis with Zytek engines.
The scoring system was 10-6-4-3-2-1 points awarded to the first six finishers.
| Team | No. | Driver | Rounds |
|---|---|---|---|
| | 1 | | All |
| 2 | | 1-6 | |
| | 7 | ||
| | 8 | ||
| | 9 | ||
| | 3 | | All |
| 4 | | All | |
| | 5 | | 1-7 |
| | 8-9 | ||
| 6 | | All | |
| | 7 | | All |
| 8 | | All | |
| | 11 | | 2 |
| 12 | | 2 | |
| | 14 | | 9 |
| 15 | | 9 | |
| | 16 | | 1-7 |
| | 8-9 | ||
| 17 | | 1-7 | |
| | 9 | ||
| | 18 | | 1-4 |
| | 5-9 | ||
| 19 | | All | |
| | 23 | | 1-2 |
| | 34 | | 4 |
| | 5 | ||
| | 9 |
The season was scheduled to start at Autódromo do Estoril on 27 April, but the round was cancelled by promoter.
| Round | Circuit/Location | Date | Laps | Distance | Time | Speed |
|---|---|---|---|---|---|---|
| 1 | | 4 May | 30 | 5.148=154.44 km | 0'56:20.557 | 164.465 km/h |
| 2 | | 11 May | 35 | 4.25=148.75 km | 0'52:45.207 | 169.183 km/h |
| 3 | | 25 May | 31 | 4.950=153.45 km | 0'48:37.392 | 189.354 km/h |
| 4 | | 29 June | 25 | 5.770=144.25 km | 0'42:45.086 | 202.449 km/h |
| 5 | | 20 July | 19 | 6.968=132.392 km | 0´46:20.006 | ? km/h |
| 6 | | 10 August | 38 | 4.023=152.874 km | 1'05:21.400 | 140.344 km/h |
| 7 | | 21 September | 27 | 5.403=145.881 km | 0'51:04.514 | ? km/h |
| 8 | | 12 October | 34 | 4.428=150.552 km | 0'56:27.791 | 159.982 km/h |
| 9 | | 2 November | 60 | 2.414=144.84 km | 1'09:14.803 | 125.499 km/h |
|
|