The Bulldogs had a second half lead that evaporated thanks to junior guard Sterling Gibbs, who scored a game-high 30 points on 9/16 FG including 6/9 3PT.
Jones finished with a team-high 23 points (9/15 FG) and grabbed 8 rebounds. He finished 5/8 from the free-throw line, where he hit 5 straight after missing his first 3.
Dunham finished with 21 points (7/14 FG) and 5 rebounds. He connect on 2/6 3-point shots.
It was a game of runs for the Bulldogs. They started the game on a 9-1 run grabbing a quick lead. However, Seton Hall was able to respond behind Gibbs and after a back-and-forth 1st half, the Pirates led 32-28 at the break.
Butler used 13-1 run to start the second half in order to grab the lead, which they held for the entire 2nd half, until freshman Khadeen Carrington tied the game at 63-63 with a 3-point play with 1:10 remaining.
Carrington finished with 20 points (6/11 FG) including 7/7 from the free throw line.
The Bulldogs responded in overtime with four quick points to jump out to a 71-67 lead.
Then Gibbs, who had just cut the lead for the Bulldogs to one at 71-70, fouled out on the next possession and Dunham hit two more free throws to extend the Butler lead.
Butler was able to hold onto their lead from there.
Both teams had their moments on the glass. The Bulldogs eventually out-rebounded Seton Hall 18-14 on the offensive glass, which helped the Bulldogs pull the upset.
It was a matchup of two of the elite rebounders in the Big East.
Butler now heads on the road to meet Georgetown at the Verizon Center.
It was over when - Seton Hall's leading scorer Sterling Gibbs picked up his 5th foul with over two minutes to go in overtime, allowing Butler to grab a lead and have the Pirates' biggest scoring threat on the bench.
NOTES: 43 fouls were called total in the game...Butler finished 20/31 (64.5%) from the FT line, while Seton Hall finished 17/23 (73.9%)...Andrew Chrabascz finished with 12 points and 5 rebounds before fouling out in the 2nd half...Kelan Martin had 5 points (tied for the most since 12/22)...Butler finished 27/64 (42.2%) including 5/18 (27.8%) from 3PT...Seton Hall shot 25/64 (39.1%) including 8/21 (38.1%) from 3-point range...Butler now leads the Big East in road wins on the season at 3.