Table:
text: 2003 British Formula Three season
Results
Results
Round Circuit Date_ Pole_Position Fastest_Lap Winning_driver Winning_team
7 Knockhill 11 May Clivio Piccione Clivio Piccione Clivio Piccione Manor Motorsport
8 Knockhill 11 May Nelson Ângelo Piquet Nelson Ângelo Piquet Nelson Ângelo Piquet Piquet Sports
9 Silverstone 25 May Nelson Ângelo Piquet Nelson Ângelo Piquet Nelson Ângelo Piquet Piquet Sports
10 Silverstone 26 May Nelson Ângelo Piquet Alan van der Merwe Alan van der Merwe Carlin Motorsport
11 Castle Combe 22 June Danny Watts Adam Carroll Alan van der Merwe Carlin Motorsport
12 Castle Combe 22 June Danny Watts Danny Watts Danny Watts Hitech Racing
13 Oulton Park 13 July Nelson Ângelo Piquet Danny Watts Alan van der Merwe Carlin Motorsport

text: 2003 British Formula Three season
Results
Results
Round Circuit Date_ Pole_Position Fastest_Lap Winning_driver Winning_team
14 Oulton Park 13 July Nelson Ângelo Piquet Alan van der Merwe Alan van der Merwe Carlin Motorsport
15 Rockingham 3 August Nelson Ângelo Piquet Nelson Ângelo Piquet Nelson Ângelo Piquet Piquet Sports
16 Rockingham 3 August Jamie Green Nelson Ângelo Piquet Jamie Green Carlin Motorsport
17 Thruxton 17 August Danny Watts Robert Dahlgren Robert Dahlgren Fortec Motorsport
18 Thruxton 17 August Eric Salignon Eric Salignon Jamie Green Carlin Motorsport
19* Spa-Francorchamps 30 August Alan van der Merwe Jamie Green Alan van der Merwe Carlin Motorsport
20 Spa-Francorchamps 31 August Robert Doornbos Jamie Green Alan van der Merwe Carlin Motorsport
21 Donington Park 6 September Alan van der Merwe Nelson Ângelo Piquet Nelson Ângelo Piquet Piquet Sports

Question: Name the circuit for July 13th for the 2003 British Formula 3 season?