The successful conversion by Forbath made up for a pair of misses earlier in the contest from 49 and 46 yards, the latter coming at the 1:17 mark of the fourth quarter.
Richard Brehaut started at quarterback for the Bruins (4-5, 2-4 Pac-10), hitting 13-of-19 passes for 127 yards and an interception as the team snapped a three-game slide. Brehaut carried the ball 18 times for 61 yards and a TD and Johnathan Franklin 23 times for 100 yards and a score as well.
The Beavers (4-4, 3-2) were paced by Ryan Katz who connected on 18-of-26 passes for 164 yards and a TD, while shaking off three sacks as the squad lost for the second time in the last three outings.
Brehaut scored the first points of the meeting when he made his way into the end zone on a seven-yard run at the 11:23 mark of the first quarter.
OSU knotted the score at 7-7 when Katz combined with Joe Halahuni on a 28-yard TD pass later in the period. With both offenses struggling for the rest of the half, the teams hit the intermission tied with a touchdown apiece.
The first possession of the third quarter went to the Beavers and they used it to drive 80 yards on nine plays, capped by a 22-yard TD run by Markus Wheaton to take the lead at 14-7.
On the next possession the Bruins ate up more than nine minutes on the clock, using 20 plays to move the ball 70 yards, finished off by a one-yard TD run by Franklin, leaving the squads tied at 14-14 heading into the fourth.
Even though Forbath missed a potential game-winner with just over a minute to play in regulation he was given a second chance as UCLA managed to move the ball 49 yards in a span of just 48 seconds. The game appeared to be heading to overtime when wideout Randall Carroll caught a pass on the wing with four seconds remaining and then made a move up the field before getting out of bounds. Initially the officials announced the game was heading to overtime, but after a challenge and a review it was determined that Carroll had stepped out with one second remaining. With the last second on the clock Forbath stepped onto the field and converted the game winner.
Forbath is now 10-of-13 on field goal attempts 50 yards and beyond.