Motherwell conceded seventh spot to St Johnstone in the Ladbrokes Premiership, as they lost 2-0 to the Saints in Perth.
Goals from Scott Tanser and Murray Davidson sealed the hosts’ league finish, and means the Steelmen will finish eighth.
Stephen Robinson named an unchanged team and the visitors started brightly, controlling possession and carving out half chances to try and get ahead.
On the half hour mark, the clearest chance of all should have fallen to Motherwell. Tanser handled the ball on the line to block Ariyibi’s goalbound effort, but the referee didn’t give it.
It would be Tanser who would then put his team ahead. Charles Dunne got on the wrong side of Chris Kane on the right side of the box and bundled the striker over.
Tanser then picked his spot to make it 1-0, putting the ball into the far right bottom corner just outside of the reach of Mark Gillespie.
Motherwell went in at the break arguably the better side but that changed in the second half, as the Saints doubled their advantage early on.
A swift counter attack left Grimshaw with a miracle to perform to somehow stop a cross into the box, having to contend with two St Johnstone players bearing down on goal.
The defender did his best, but Davidson used all his experience to steer home the second.
Motherwell changed their shape and brought on attacking reinforcements to try and salvage something, but they ultimately failed to carve out the chances required.