Michael van Gerwen became the first player to secure his Premier League play-off place with an 8-4 victory over Gary Anderson in Milton Keynes.
The world number one bounced back from his shock 8-3 loss to Nathan Aspinall on Thursday to see off the Scot and guarantee his place in the knockout phase.
Van Gerwen's victory also saw him move back to the top of the table with two nights of the regular season to go, after Aspinall was held to a 7-7 draw by James Wade.
Jose de Sousa is in third place after an 8-5 win over Jonny Clayton, who nevertheless is still clinging on to the final play-off place.
Peter Wright gave himself an outside chance of muscling in on the top four after he saw off a fading Dimitri van den Burgh 8-5.