Whittington, Jason Clark and Markel Starks all hit 3s in the final 6 minutes to counter the Red Storm’s momentum in a game in which Georgetown never trailed – but also never led by double digits until the final 5 seconds.
Nate Lubick finished with seven points, eight rebounds, five assists and a career-high four blocks for the Hoyas (19-5, 9-4), who shot 61 percent in the second half and moved into sole possession of fourth place in the Big East.
D’Angelo Harrison scored 24 points, and Moe Harkless had 20 for the Red Storm (10-15, 4-9).
NO. 22 MICHIGAN 70, ILLINOIS 61
In Ann Arbor, Mich., Tim Hardaway Jr. scored 15 points and Evan Smotrycz added 13 as Michigan remained unbeaten at home.
Trey Burke added 14 points for the Wolverines (19-7, 9-4 Big Ten), but it was Smotrycz and Hardaway who provided a big lift by shaking off their shooting slumps in the first half.
Hardaway entered the game shooting 19 percent from 3-point range in conference play. Smotrycz wasn’t much better at 24 percent, but they both went 2 for 2 from beyond the arc before halftime.
Brandon Paul had 21 points and Tyler Griffey added 18 for Illinois (16-9, 5-7), which has lost six of seven.
The Illini had 14 offensive rebounds to Michigan’s six but couldn’t take advantage.