Crystal Palace 4-3 West Ham: Roy Hodgson's side saw off a late challenge from the Hammers to secure three points in a thrilling back-and-forth contest at Selhurst Park.
Tomas Soucek struck first to give the Hammers an early lead, but Palace hit back through Jordan Ayew to level the game minutes later.
Goals from Wilfried Zaha and Jeffrey Schlupp gave the hosts a comfortable lead but Michail Antonio scored after 35 minutes to keep the game competitive heading into half-time.
After the interval Eberechi Eze extended his side's lead from the penalty spot, but West Ham maintained their pressure and a goalmouth scramble from a corner allowed Nayef Aguerd to bundle the ball home and hand his side a lifeline.