Muirhead scored a first-half double to help his side secure three points
Livingston ensured the Scottish Championship title race will go to the final day - live on BBC Scotland - as they cruised past relegated Hamilton Academical with a commanding 3-0 win.
Robbie Muirhead opened the scoring from the penalty spot and doubled his side's advantage before the interval, with Tete Yengi scoring in the second half to secure a vital three points.
After Falkirk fell to a dramatic late Partick Thistle winner on Friday, David Martindale's side knew a win would take them level on points at the top of the table and set up a dramatic final day.
Hamilton had already been relegated from the second tier pending an appeal of their 15-point deduction, which will be heard on Thursday.
That means they will know their fate when they kick off on Friday against title-hopefuls Falkirk.
Livingston play play-off chasing Thistle on the final day of the season, eight goals behind Falkirk on goal difference.
