The Phoenix (4-2, 2-1 Southern Conference) beat the Eagles for the first time in eight games.
Georgia Southern (4-2, 1-2 SoCon) broke a 23-23 tie with 8:56 to play on Mike Hamilton's 6-yard run. Elon took the ensuing kickoff and went 55 yards in 10 plays to tie the score again on Scott Riddle's 1-yard pass to Dontay Taylor and Wilcox's conversion kick with 5:33 to go.
The Eagles took the opening possession in overtime but only moved the ball 2 yards and settled for Jesse Hartley's 41-yard field goal. Elon only managed 8 yards on its possession and got Wilcox's fourth field goal, a 34-yarder.
Hartley, who made a 49-yard try in the second quarter as one of his four field goals, missed a 38-yard attempt in the second overtime as the Eagles gained only 4 yards in three downs. The Phoenix actually lost 7 yards in three plays before Wilcox made the winning kick.
Elon's offense, which averaged 421 yards a game, was held to 284 yards, including minus-19 yards rushing.
THE CITADEL 54, FURMAN 51 (OT)
Tory Cooper's 5-yard touchdown run won the game after The Citadel (4-2, 2-1 Southern Conference) held the Paladins (2-4, 0-2) to a field goal during their overtime possession.
In Charleston, S.C., the Citadel gained a school record 641 yards.
WOFFORD 52, GARDNER-WEBB 17
In Spartanburg, S.C., six different Wofford players scored touchdowns in the Terriers' win.
The Bulldogs (2-4) tied the game at 14 on their first possession of the second half, but Wofford (6-1) scored 38 points in the second half as its relentless wishbone attack wore Gardner-Webb out.
CHATTANOOGA 39, WESTERN CAROLINA 21
In Chattanooga, Tenn., wide receiver Blue Cooper threw two first-half touchdowns for the Mocs (2-4, 2-1).
Adam Hearns went 17-of-40 for 265 yards with two picks and a touchdown for the Catamounts (1-6, 0-3).