Rayo Vallecano de Madrid, S.A.D. often abbreviated to Rayo, is a Spanish football team based in Madrid, in the neighborhood of Vallecas. Rayo was founded on 29 May 1924, and currently compete in Segunda Division following relegation from La Liga. Home games are held at the 14,708-seater Campo de Football de Vallecas stadium. Rayo has competed in one European competition, the UEFA Cup in the 2000–01 season. The club made it to the quarter-finals before losing to fellow Spanish club Alaves 4–2 on aggregate.