SYRACUSE — Kris Joseph scored a career-high 29 points, hitting a go-ahead 3-pointer in the final minute of overtime, and No. 2 Syracuse beat 12th-ranked Georgetown 64-61 on Wednesday night to give coach Jim Boeheim his 880th career win.

Boeheim took sole possession of third place all-time in Division I, one more than North Carolina’s Dean Smith, but it wasn’t easy against the Orange’s rival.

The game was tied at 55 after regulation, and freshman Otto Porter scored the first four points of overtime for the Hoyas, swishing two free throws and hitting a baseline jumper to give Georgetown 61-59 lead with 2:19 left.

Dion Waiters tied it with a pair of free throws for the Orange, and after Porter lost the ball out of bounds at the other end, Scoop Jardine fed Joseph in the left corner, and he buried his career-best sixth 3 of the game with 29 seconds left.

Jardine sealed it by forcing a turnover by Jason Clark with 4.9 seconds to go, allowing Syracuse (24-1, 11-1 Big East) to remain unbeaten at home at 16-0. Georgetown (18-5, 8-4), had won five of six entering the game.

Fab Melo had 11 points, seven rebounds and six blocks for Syracuse, which won despite being dominated on the glass 52-35. Jardine finished with eight assists.

Porter led Georgetown with 14 points, Clark had 12 and Hollis Thompson 10.

The 87th meeting between the staunch rivals — Syracuse leads 48-39 — had added significance. With Syracuse’s impending move to the Atlantic Coast Conference, it might have been the last time the teams meet as Big East foes in the Carrier Dome.

It turned into one to remember for the crowd of 27,820.

Syracuse held Georgetown, second in the Big East from long range, to 5 of 21 (23.8 percent) from beyond the arc.

Syracuse, which trailed 31-27 at halftime, scored the first eight points of the second to gain the lead. After that, neither team led by more than three points until Dion Waiters energized the Orange. He fed Melo under the basket for an underhand layup, and after Melo blocked a shot by Mikael Hopkins, Waiters drove the lane and passed back out to Joseph, who drained a 3 for a 54-48 lead with 4:36 left.

Clark came right back for the Hoyas, hitting his first 3-pointer of the game 14 seconds later to make it a three-point game. After turnovers by both teams, C.J. Fair blocked Henry Sims under the basket and Sims missed the follow.

Jardine missed at the shot clock buzzer with just under 2 minutes left and Clark struck again, hitting a long 3 from the top of the key to move the Hoyas within 55-54 with 1:36 left.

Greg Whittington’s free throw tied it with 1 minute left and Melo’s block on Sims gave the Orange the chance for the win in regulation, but Waiters missed from the top of the key.

Syracuse had a rebounding margin of +0.2 and had been beaten on the boards 11 times on the season, six in conference. In their only loss, the Orange were beaten 38-25 on the glass in a 68-57 setback at Notre Dame last month. Georgetown outrebounded Syracuse 26-17 in a tight first half that was tied five times, with the Hoyas gaining the largest lead, 29-23, on Clark’s runner with 1:54 left.

Syracuse regrouped quickly. Waiters fed Joseph for a dunk and two free throws by Brandon Triche had the Orange back within 31-27 at the break.

Georgetown shot 39.4 percent in the period, 3 of 13 from long range, while the Orange, the top shooting team in the conference, shot just 29 percent, going 2 for 11 on 3s.

Syracuse started the second half with that spurt as Sims and Clark each picked up their third fouls in a 26-second span. Jardine ignited the surge with a pretty layup high off the glass and over the outstretched arms of Sims. Jardine, who was fouled on the play, converted the free throw for a three-point play and Triche’s 3 from the right wing gave Syracuse a 35-31 lead just over 2 minutes into the half.

Despite the fact that Syracuse leads the Big East in scoring at 78.1 points per game, a low-scoring affair was expected. Georgetown entered the game tops in the Big East in scoring defense, allowing 58.6 points per game, and tops in defending the long ball, allowing a conversion rate of just 27.6 percent. The Hoyas also had limited four Big East opponents to under 50 points, including their last two triumphs, over Connecticut and South Florida.

John Thompson III’s dad became persona non grata around here when he guided the Hoyas to a 52-50 upset of Syracuse in the last game at old Manley Field House on Feb. 12, 1980. It snapped the Orange’s 57-game winning streak in the intimidating building and the elder Thompson boldly declared in his postgame press conference: “Manley Field House is officially closed.”

Those words created one of college basketball’s most heated rivalries and they still ring all these years later. Boeheim said after Syracuse’s move to the ACC was announced that the schools would find a way to keep the series going.