GP2 reveals 11-round 2015 calendar

The series will support Formula 1 at all of its rounds, starting in Bahrain and finishing in Abu Dhabi as was the case in 2014.

The core of the campaign takes place alongside F1's European season, with the only potential circuit change from last year dependent on where the German Grand Prix is held next season.

Series boss Bruno Michel said: "I'm glad that once again all of our events will take place alongside Formula 1.

"It's the best way for young drivers to not only learn as many F1 tracks as possible, but also to showcase their skills directly in front of the F1 paddock.

"With the introduction of DRS in 2015 - which will be the only important technical modification on our cars - GP2 is the perfect category to prepare the drivers for the next step.

"Just like in 2014, next season's calendar is a balance between racing on F1 circuits, in Europe and overseas, and cost control with the events being limited to 11 in order to enable our teams to maintain a sustainable economic model."

GP2 has also confirmed its line-up of teams for next year, with the only change from 2014 being the already-announced takeover of Caterham's entry by Status Grand Prix.

The series' two official pre-season tests will take place in Abu Dhabi on March 9-11, and Bahrain on April 1-3.

April 17-19 Sakhir (Bahrain)

May 8-10 Barcelona (Spain)

May 21-23 Monaco

June 19-21 Red Bull Ring (Austria)

July 3-5 Silverstone (Great Britain)

July 17-19 TBC (Germany)

July 24-26 Hungaroring (Hungary)

August 21-23 Spa (Belgium)

September 4-6 Monza (Italy)

October 9-11 Sochi (Russia)

November 27-29 Yas Marina (UAE)