Partick Thistle defeated cinch Championship leaders Queen's Park 4-0 on Friday night to close the gap on the Spiders to three points.
All the goals came in the second half with Kevin Holt grabbing a double and Kyle Turner and Danny Mullen also on target for Kris Doolan's men.
Dundee have the chance to take over at the top when they face Arbroath at Gayfield tomorrow.
