<prompt> Tlatša polelo ye e latelago: The 2015 Bahrain GP2 Series round e be e le para ya one-make single seater motor races yeo e bego e swerwe ka 18 le 19 April 2015 ka Bahrain International Circuit ka Sakhir, Bahrain bjalo ka karolo ya GP2 Series. E be e le potologo ya mathomo ya 2015 GP2 Series gomme e be e sepetšwa go thekga  <response>: Moputso o Mogolo wa Bahrain wa 2015. Lebelo la pele, e lego tiragalo ya go ba le diphuthelwana tše 32, le ile la thopša ke mootledi wa ART Grand Prix Stoffel Vandoorne go tšwa pole position. Rio Haryanto o ile a fetša e le wa bobedi bakeng sa sehlopha sa Campos Racing, gomme mootledi wa Racing Engineering Alexander Rossi o ile a fetša e le wa boraro. Haryanto o ile a fenya lebelo le lekopana la go kitima ka lebelo la dikhilomithara tše 23, go tšwa Vandoorne a le maemong a bobedi, gomme mootledi wa Lazarus Nathanaël Berthon a le maemong a boraro. 