St Mirren remained unbeaten in the cinch Premiership after a share of the spoils at Rugby Park.
Ex-Saint Brad Lyons put the hosts ahead on 19 minutes, but an own-goal from Kyle Magennis a little over 10 minutes later saw the Buddies take a point back to Paisley in a 1-1 draw and make it seven without defeat in the league.
Stephen Robinson made three changes to the side that was defeated at Easter Road on Wednesday night. In came Charles Dunne, Keanu Baccus and Conor McMenamin in place of Richard Taylor, Caolan Boyd-Munce and Toyosi Olusanya.
Despite a fairly positive start for Saints, it was the hosts who took the lead on 19 minutes through Brad Lyons. The former Buddie charged down a Dunne clearance with the ball spinning into the air. Lyons raced on to it, beating Zach Hemming to the ball to nod home.
Saints drew level just after the half-hour mark. Mandron laid the ball into the path of Scott Tanser whose dangerous ball from the left was turned into his own net by ex-Saint Kyle Magennis. Unfortunately for the St Mirren Youth Academy graduate, he had to be substituted with an injury just a few minutes later.
Greg Kiltie had an opportunity in injury time at the end of the half when Baccus' deflected effort fell into his path. He turned and got the shot away but it too was deflected and drifted wide.
The second-half was a stuffy affair devoid of any real opportunities for either side. The manager had to contend with McMenamin coming off after a knock on 64 minutes, while Olusanya was introduced in place of Mandron as Saints looked to take advantage of the forward's pace.
But it was Kilmarnock who were seeing more of the ball in the latter stages of the game as they searched for their first league win since the opening day of the season. Five minutes of additional time were added with Matty Kennedy blootering a free-kick well over from 30 yards as the game approached its end. Kilmarnock chased for a winner with their captain Kyle Vassell doing well to break forward and hold the ball up in stoppage time before rolling it to substitute Liam Polworth inside the area, but he took it first time and knocked over to ensure that it would end in a point for each side.
Full-Time: Kilmarnock 1-1 St Mirren
St Mirren: Hemming, Fraser, Gogic, Dunne, Strain, Baccus, O'Hara (c), Tanser, Kiltie (Greive 83), Mandron (Olusanya 70), McMenamin (Small 64)
Subs Not Used: Urminsky, Bolton, Taylor, Flynn, Boyd-Munce, Nahmani
Kilmarnock: Dennis, Mayo, Wright, Findlay, Lyons (Polworth 78), Armstrong, Magennis (Watson 34), Kennedy, Ndaba, Vassell, Cameron (Dallas 67)
Subs Not Used: O'Hara, Deas, McKenzie, Murray, Davies, Donnelly
Referee: Chris Graham
Assistant Referee: Gordon Crawford
Assistant Referee: Stuart Stevenson
Fourth Official: Chris Fordyce
VAR: Alan Muir
Attendance: 6,624 (1,152 St Mirren supporters)