• Silverstone to host British round on 17 June
• Four races in Spain, two in US

The MotoGP world championship will start under floodlights in Qatar once again next year and end at Spain's Valencia circuit, the series organisers said on Wednesday.

The governing International Motorcycling Federation (FIM) issued a provisional 18-round calendar with no new additions and four Spanish races.

The United States has two races, now separated by three weeks, at Laguna Seca in California and Indianapolis.

Provisional 2012 calendar

15 April* Qatar

29 April Spain (Jerez)

6 May Portugal (Estoril)

20 May France (Le Mans)

3 June Catalunya (Barcelona)

17 June Britain (Silverstone)

30 June** Netherlands (Assen)

8 July Germany (venue to be confirmed)

15 July Italy (Mugello)

29 July*** US (Laguna Seca)

19 Aug Indianapolis

26 Aug Czech Republic (Brno)

16 Sept San Marino (Misano)

30 Sept Aragón (Motorland Aragón, Spain)

14 Oct Japan (Motegi)

21 Oct Malaysia (Sepang)

28 Oct Australia (Phillip Island)

11 Nov Valencia (Ricardo Tormo)

* Evening race

** Saturday race

*** MotoGP only, no other classes

Spain (Jerez), Portugal and Germany are all subject to contract.