Formula One is set to have 20 races on its schedule for 2013 after an unconfirmed European event was included on Wednesday to fill the vacancy left by the removal of the Grand Prix of America.

At a meeting of the World Motor Sport Council in Istanbul, the FIA moved the German GP forward from July 14 to July 7, creating a space for July 21 that is "reserved for another European event."

The governing body said the race is subject to the "approval of the relevant national sporting authorities."

The Grand Prix of America, due to be held in New Jersey next year, was postponed in October until 2014.

F1 had 20 races for the first time this year, when Sebastian Vettel of Germany won a third straight world title.

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2013 calendar:

March 17 — Australian GP

March 24 — Malaysian GP

April 14 — Chinese GP

April 21 — Bahrain GP

May 12 — Spanish GP

May 26 — Monaco GP

June 09 — Canadian GP

June 30 — British GP

July 7 — German GP

July 21 — Reserved for another European event

July 28 — Hungarian GP

Aug. 25 — Belgian GP

Sept. 8 — Italian GP

Sept. 22 - Singapore GP

Oct. 6 — Korean GP

Oct. 13 — Japanese GP

Oct. 27 — Indian GP

Nov. 3 — Abu Dhabi GP

Nov. 17 — United States GP

Nov. 24 — Brazilian GP