Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Circuit | Date | Pole Position | Fastest Lap | Winning driver | Winning team |
| --- | --- | --- | --- | --- | --- |
| Brands Hatch | 29 March | Alexander Sims | Ryuji Yamamoto | Riki Christodoulou | Fortec Motorsport |
| Brands Hatch | 30 March | Adam Christodoulou | Adam Christodoulou | Adam Christodoulou | CR Scuderia |
| Rockingham | 12 April | Adam Christodoulou | Adam Christodoulou | Adam Christodoulou | CR Scuderia |
| Rockingham | 13 April | Adam Christodoulou | Adam Christodoulou | Adam Christodoulou | CR Scuderia |
| Donington Park | 3 May | Adriano Buzaid | Adriano Buzaid | Adriano Buzaid | Fortec Motorsport |
| Donington Park | 4 May | Adriano Buzaid | Alexander Sims | Dean Stoneman | Alpine Motorsport |
| Thruxton | 17 May | Adam Christodoulou | Ryuji Yamamoto | Adam Christodoulou | CR Scuderia |
| Thruxton | 18 May | Adam Christodoulou | Adam Christodoulou | Riki Christodoulou | Fortec Motorsport |
| Croft | 31 May | Adam Christodoulou | Adriano Buzaid | Adam Christodoulou | CR Scuderia |
| Croft | 1 June | Race cancelled due to rain | Race cancelled due to rain | Race cancelled due to rain | Race cancelled due to rain |
| Silverstone GP | 7 June | Adriano Buzaid | Adriano Buzaid | Adriano Buzaid | Fortec Motorsport |
| Silverstone GP | 8 June | Adriano Buzaid | Riki Christodoulou | Adriano Buzaid | Fortec Motorsport |
| Snetterton | 12 July | Riki Christodoulou | Dean Stoneman | Alexander Sims | Manor Competition |
| Snetterton | 13 July | James Calado | Riki Christodoulou | James Calado | Fortec Motorsport |
| Snetterton | 13 July | Dean Stoneman | Kris Loane | Dean Stoneman | Alpine Motorsport |
| Oulton Park | 26 July | James Calado | Alexander Sims | Adam Christodoulou | CR Scuderia |
| Oulton Park | 27 July | Dean Stoneman | Riki Christodoulou | Adam Christodoulou | CR Scuderia |
| Silverstone National | 30 August | Adriano Buzaid | Alexander Sims | Alexander Sims | Manor Competition |
| Silverstone National | 31 August | Jordan Oakes | Adriano Buzaid | Adriano Buzaid | Fortec Motorsport |
| Brands Hatch | 20 September | Adriano Buzaid | Adriano Buzaid | Adriano Buzaid | Fortec Motorsport |
| Brands Hatch | 21 September | Dean Stoneman | Dean Stoneman | Dean Stoneman | Alpine Motorsport |
Question:
What date was the circuit, snetterton, when riki christodoulou had the fastest lap?
Answer:
13 July