Betis headed into this weekend's round of fixtures knowing three points for Getafe or Valladolid would confirm their inevitable relegation, and the former duly delivered as Adrian Colunga's eighth-minute strike earned all three points for Cosmin Contra's men at Coliseum Alfonso Perez.
It rounds off a miserable campaign for Betis, whose two-year stay in Spain's top flight comes to an end with four matches of their season left to play.
Successor Juan Carlos Garrido fared little better, and he managed little over a month at the helm before Gabriel Calderon was charged with the task of maintaining Betis' top-flight status.
Getafe's victory lifts them out of the drop zone, though Real Valladolid possess two games in hand, and 19th-placed Almeria travel to Espanyol on Sunday.
