Cedrick Lindsay hit two free throws with 10 seconds remaining for UR.
The triumph -- though not technically an upset, according to some betting outlets -- prompted fans at Robins Center to storm the court.
The Minutemen fell to 16-2, 3-1.
Anthony was 8-of-14 from the floor and made 4-of-6 3-pointers, and Lindsay finished with 11 points and four assists for the Spiders. Trey Davis grabbed nine rebounds to go with four points, and Alonzo Nelson-Ododa had three blocks.
Sampson Carter scored 15 points to lead the Minutemen. Cady Lalanne recorded 10 points, 13 rebounds and two blocks and star guard Chaz Williams added eight points and seven assists, but missed a 3-point attempt off the back rim that would have tied the game with six seconds remaining.
Anthony was the difference-maker in the first half, when the Spiders never trailed while holding the Minutemen to a season-low 22 points for a half. Anthony's 3-pointer with four minutes remaining staked UR to its largest lead, 26-17, before the Minutemen scored the final three points to close the half down 27-22.
The Minutemen took their only lead less than three minutes into the second half and managed to tie the Spiders at 40 with less than 10 minutes left. Anthony's 3-pointer with under four minutes left made it 55-48, which was just enough to hold off the Minutemen, who received nine points from their own Trey Davis.
More Atlantic 10 men:
Treveon Graham added 14 points for the Rams, who led throughout the second half. The Rams are 15-0 when they score at least 75 points.
The Rams earned their seventh win in eight games. Weber had five assists, and Graham had six rebounds.
Senior forward Devin Oliver scored a game-high 21 points for Dayton. Sophomore forward Dyshawn Pierre had 14 points and six rebounds.
Dayton cut the lead to five on back-to-back 3-pointers by sophomore guard Khari Price and junior guard Jordan Sibert.
The Rams soon regained control and stretched their lead to 15 on consecutive 3-pointers by freshman guard JeQuan Lewis with just under 10 minutes remaining. Dayton cut the deficit to 11 with 7:46 to go, but the Rams outscored the Flyers 9-0 over the next two minutes. ...
Branden Frazier scored 22 points and Jon Severe 21 for the Rams.
For GMU, Sherrod Wright had 21 points, Bryon Allen added 13 points, and Jalen Jenkins had 11 rebounds and nine points, ...
Sophomore guard Austin McBroom made a key 3-point field goal in the final minutes as Saint Louis scored the last six points to rally for a 76-72 victory over Duquesne and run its winning streak to 12 games.
Saint Louis (18-2, 5-0) stayed atop the Atlantic 10.
Scott Eatherton had 19 points and nine rebounds for the Huskies, who squandered a 20-point edge.
Marcus Damas had 21 points and five rebounds for the Tigers. Towson pulled even at 54 when Four McGlynn made three free throws with 6 seconds to go -- the only tie in the game after 0-0. ...
Big South men:
Reco McCarter scored 17 for host Campbell (10-10, 4-1), which edged Radford 65-63 despite Javonte Green’s 11 points and 10 rebounds.
R.J. Price missed a 3-point try for the Highlanders (13-7, 3-2) just before the final buzzer. ...
Lucas Woodhouse broke a tie on a 3-pointer with 4 seconds left and finished with a career-high 27 points as host Longwood (6-14, 1-4) broke through to edge Liberty 69-66, ending a seven-game slide.
Woodhouse was 7-of-10 from 3-point territory.
Tomasz Gielo led the Flames (8-12, 2-3) with 20 points and 10 rebounds. ...
Rodney Glasgow hit a tiebreaking putback with 3 seconds left in overtime as host VMI (10-8, 3-2) rallied past High Point 82-80.
Division II (CIAA):
Andre Simon, a Menchville High graduate, had 23 points as Randolph-Macon (12-4, 6-1) knocked Virginia Wesleyan out of a tie for first place in the Old Dominion Athletic Conference, rolling past the Marlins 78-62 before 1,007 fans in Ashland.
Simon netted 15 second-half points. Akeem Holmes, from King William High, contributed 18 points and seven rebounds for the Yellow Jackets. Lamont Moore, a Tidewater Academy graduate, hit a 3-pointer on R-MC's first possession of the second half, giving his team a lead that stayed in double digits.
VWC (12-4, 5-2), led by Khory Moore's 18 points, is ranked 16th nationally by d3hoops.com. The Marlins, the ODAC's top 3-point shooting team coming into the game, were just 4-of-19 (21 percent) from beyond the arc. ...
Guilford beat visiting Hampden-Sydney 74-72 to retain its share of the lead with R-MC. Zeb Richardson's layup with 1:50 remaining put the Quakers ahead to stay, 72-70, at the 1:50 mark.
Richard Bland (17-1), ranked seventh in the National Junior College Athletic Association and in its first season of NJCAA competition in nearly 20 years, upended No. 2 Louisburg 71-68 in Petersburg behidn Tavon Mealy's 15 points and Micah Thomas' 13.
Louisburg fell to 16-2.
Alabama Birmingham (11-7, 3-2) beat Old Dominion 80-64 in a Conference USA game at Constant Center, the first clash since 1991 for the former Sun Belt rivals.
Karisma Carpenter had 28 points and 17 rebounds for UAB.
Galaisha Goodhope scored 16 and Shae Kelley 14 for ODU.
ODU’s night also was marred by an injury midway through the second half to post player Chelisa Painter’s left leg. It was the fifth time in the last seven games that ODU (9-10, 2-3) allowed at least 80 points. ...
Duquesne (14-6, 6-1 A-10) avenged its only Atlantic 10 loss, winning 77-65 at VCU (16-4, 4-3) despite Robyn Parks' 24 points and nine rebounds for the Rams.
Five Dukes scored in double figures, including Raegan Moore, who provided 21, and April Robinson, who added 11 of her 20 points in the second half. ...
The game, which marked ECU’s lowest scoring of the season, saw the Pirates shoot 30.2 percent from the field, while the Owls were limited to 27.8. It was also the second-lowest-scoring contest of the season for Rice (10-8, 3-2).
Redshirt sophomore forward Jada Payne achieved her sixth double-double of the season: game-high 17 points and 10 rebounds.
Richmond (9-10, 3-3) reached .500 in the Atlantic 10 with a 67-58 win at Saint Louis (5-13, 0-5). ...
Chelsey Davis had 18 points and 11 rebounds, her second double-double of the season, to help Elizabeth City State (5-14, 2-6 CIAA) win 64-54 at home over Lincoln (Pa.).
Shenandoah’s game at Virginia Wesleyan (11-4, 5-1 ODAC) was postponed to 6 p.m. Thursday.