West Ham's relegation from the Barclays Premier League was confirmed after they threw away a two-goal lead to lose 3-2 at Wigan, who ensured their own survival battle goes to the last day of the season thanks to Charles N'Zogbia's stoppage time winner.
The Hammers needed to win at the DW Stadium to stand any chance of beating the drop and were 2-0 up at half-time courtesy of Demba Ba's headers on 12 and 26 minutes.
The Latics stormed back after the break. N'Zogbia scored either side of a Conor Sammon strike, leaving Roberto Martinez's side in the bottom three on goal difference alone and sending the visitors down.