St. Mirren vs Partick Thistle Prediction 25.05.2026 | Premiership

St Mirren head into Monday’s decisive home shootout knowing their top-flight status is on the line, having slipped into a nervy 11th place in the Premiership standings and now facing a high-stakes relegation play-off final.

Craig McLeish’s interim side have struggled to build any real consistency during the closing stages of the season, a trend underlined on Thursday when they failed to hold onto a first-half lead from Killian Phillips in a tense 1-1 draw at Firhill Stadium.

In order to secure a ninth consecutive season in Scottish top-flight football, the Buddies will need to significantly improve their attacking output, having scored just four times across their last six matches in all competitions.

However, St Mirren head into this crucial encounter severely depleted, with Ryan Mullen, Keanu Baccus, Malik Dijksteel, Jonah Ayunga, and first-choice goalkeeper Shamal George all sidelined through injury, leaving them with limited options available ahead of Monday’s fixture.

Partick Thistle travel to the south of Scotland buoyed by a wave of belief after showing impressive resilience to take control of the second half on Thursday, where Aidan Fitzpatrick’s clinical 61st-minute equaliser cancelled out a narrow lead for St. Mirren.

However, history offers a clear warning for the Maryhill faithful, with Partick still carrying the scars of repeated post-season disappointment, having suffered heartbreak in each of their previous play-off final attempts, most notably surrendering a three-goal advantage against Ross County in 2023.

Even against top-flight opposition, Mark Wilson’s side are unlikely to be overawed, instead looking to produce another disciplined and combative display as they aim to end a five-year absence from Premiership football, with their current form offering encouragement as they remain unbeaten in 12 consecutive matches across all competitions, albeit with only five wins in that run.

Team news sees Luke McBeth return at a crucial moment after a short injury layoff, having played 80 minutes in the first leg against St. Mirren, although experienced defender Daniel O'Reilly remains a major doubt after missing the clash last Thursday.