Mezue ahịrịokwu na-esonụ: Na 9 Machị 2015, ndị otu Manor Marussia kwupụtara na Merhi ga-agba ọsọ na, n'akụkụ onye Britain bụ Will Stevens. Agbanyeghị, Marussia esoghị asọmpi na Australia n'ihi nsogbu teknụzụ. Na Malaysian Grand Prix Merhi gbara asọmpi mbụ ya na Formula One n'agbanyeghị nsogbu na ụgbọ ala ibe ya Stevens. Merhi enweghị ike ịtọ oge okirikiri n'ime 107% nke oge kachasị ọsọ na Q1, mana ndị na-agba ọsọ ọsọ nyere Merhi ohere ịmalite ọsọ ahụ. Merhi kwụsịrị n'ọnọdụ nke iri na ise, agba atọ n'azụ onye mmeri Sebastian Vettel. Na Chinese Grand Prix, Merhi kwụsịrị n'ọnọdụ 16 n'azụ onye otu ya Stevens. Na Bahrain na
Spain Merhi mechakwara n'azụ Stevens. Agbanyeghị, na Monaco Grand Prix Merhi kwụsịrị na 16th n'ihu Stevens. Na Canadian Grand Prix, Merhi ruru eru n'ihu Stevens ma bido na 16th n'ihi ntaramahụhụ nye Sebastian Vettel na Max Verstappen. Nakwa na Jenson Button enweghị ike ịtọ oge okirikiri na nzere n'ihi nsogbu injin. N'ọsọ ahụ, Merhi ji otu nkeji n'ihu Stevens mana n'agba nke iri ise na isii, a manyere ya ịla ezumike nká n'ihi nsogbu ọkwọ ụgbọala. Ọ bụ oge mbụ Merhi na-akụ afọ n'ala n'ọsọ Formula One nke ọ malitere, mana ọ nọgidere n'ihu Stevens na Ọkwọ ụgbọ ala. Na Austria, Merhi kwụsịrị n'ọnọdụ nke iri na anọ, agba atọ n'azụ onye mmeri Nico Rosberg. A kwụsịrị Merhi maka Alexander Rossi maka ise n'ime Grands Prix asaa ikpeazụ nke 2015, ewezuga Russia na Abu Dhabi, tupu ịlaghachi azụ na Formula E na 2017 na Formula 2 na 2018.