Partick Thistle survived a tremendous fight back from Forfar to claim all three points.
The Jags looked to be coasting by half time when they were three goals ahead, but the home side were transformed after the break and probably deserved a share of the spoils.
Mark Roberts opened Thistle's account in the 26th minute after he earned a penalty when Alan Rattray brought him down in the box with a desperate tackle.
Roberts himself took the spot-kick and sent the keeper the wrong way.
In the 38th minute Roberts doubled his and Thistle's tally, albeit with the help of a wicked deflection, his shot from the edge of the box striking the boot of Eddie Forest to completely wrong foot Francois Dubourdeau in goal.
A minute before the interval Partick looked to have wrapped things up when Graham Dorrans, on loan from Livingstone, curled a great shot in from the edge of the box.
However Forfar were transformed after the break as substitute Martin Cameron threw them a lifeline in the 53rd minute when he hammered home a Ricky Waddell corner from close range.
Steven Bonar ensured a thrilling finish, scoring Forfar's second in the 72nd minute, looping a header over the keeper.
Thistle were really up against it four minutes later when James Gibson was sent off for a bad tackle on Darren Gribben.
However, Forfar themselves finished the game with only 10 men after Eddie Forrest received a second yellow card just three minutes from time.