Yale (13-17, 7-6) used a 17-5 run over the final 9 minutes of the first half to take a 36-24 lead into intermission. Princeton roared back to within one, 62-61, on Ian Hummer's jumper with 3:08 remaining, but scored just five points the rest of the way.
Princeton (16-10, 9-3), which sits half a game behind Harvard for first place after the Crimson's win over Columbia, shot 52 percent (23 of 44). Yale answered with its second-best shooting performance of the season, 61 percent (23 of 38), and made 16 of 20 free throws.
T.J. Bray paced Princeton with 17 points.
Maryland point guard Melo Trimble has withdrawn from the NBA draft and will return to College Park for his junior season.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.