The 2017-18 campaign delivered a triumphant return to the top flight for Rayo Vallecano as Rayistas clinched the Segunda División title and secured promotion to La Liga under the astute management of Michel. Leading the charge was the sensational striker Raúl de Tomás, whose league-record 24 goals proved decisive in a campaign built on grit and a strong finish that secured the title with a match to spare. It was a standout year that saw the club's iconic sash kits pay nostalgic tribute to their history, cementing a defining chapter of their modern era.