St Mirren will take on Partick Thistle in the first leg of the William Hill Premiership Play-Off on Thursday 21 May 2026, with kick-off set for 8pm at The Wyre Stadium at Firhill. The clash comes after Partick Thistle booked their place in the final by beating Dunfermline 3-2 on aggregate in the semi-finals.
The away end is already gone. St Mirren's allocation has sold out, meaning 1,800 Buddies will be behind their side on Thursday night, while the match will also be shown live on Sky Sports. International subscribers to St Mirren TV can watch it as part of their subscription, giving those unable to make the trip another way to follow a night that could shape both clubs' seasons.
St Mirren arrive in better recent form. Stephen Robinson's side drew 1-1 with Dundee United at The SMiSA Stadium on Sunday, with Jake Young scoring their second-half goal, after beating Aberdeen 2-0 away the previous Tuesday through goals from Richard King and Killian Phillips. Those results offered a lift after a season in which consistency has often been hard to hold for long.
Partick Thistle, by contrast, come into the tie after a run of draws that did enough to keep them moving but did not exactly sharpen their edge. They drew 2-2 away to Airdrieonians after rescuing a late point, then finished with a 0-0 against Arbroath and a 1-1 draw with Queen's Park at Firhill. In the play-off semi-finals, though, they found a different gear when it mattered, drawing 1-1 at East End Park before coming from behind at Firhill after Charlie Gilmour gave Dunfermline a first-half lead. Logan Chalmers and Alex Samuel turned that tie around and sent Thistle through.
The sides have already met once this season in competitive action, when St Mirren beat Partick Thistle 3-1 in the Scottish Gas Scottish Cup quarter-finals at The SMiSA Stadium in March. Dan Nlundulu scored from the penalty spot for St Mirren, Jake Young added another before half-time, and Ben Stanway pulled one back for Thistle in the second half. That meeting showed how quickly the balance can shift between them, and Thursday's first leg carries the same sense of fine margins.
Ryan Lee will referee the match, with Andrew Dallas on VAR. For St Mirren, the task is to make their away support count and leave Firhill with something to protect at home; for Partick Thistle, it is to turn a season of near misses into a first-leg advantage that keeps promotion in reach.
