Angel Robinson led the Golden Eagles on a 17-3 run to close out the contest, as Marquette overcame a seven-point deficit late in the second half by attacking the basket, hitting clutch free throws, and holding Georgetown to only three points in the final 5:43.
"We kept talking about composure," MU head coach Terri Mitchell said. "Down the stretch is where you win games. That's character. That's how you win in the Big East."
Robinson led Marquette's scoring attack with 20 points and three assists, while Lauren Thomas-Johnson added 13 points. Forward Jessica Pachko pulled down seven rebounds to go along with six points.
The Golden Eagles picked up their fourth Big East win despite turning the ball over a season- high 30 times. Robinson alone had 12 turnovers, and the two teams combined to turn the ball over 56 times.
"It was ugly, we know it was ugly, but it's a victory," Mitchell said. "It's a game to build upon because in the Big East, nothing is easy."
Marquette had not led since the 13:16 mark in the second half when they took a one point lead on a Robinson three-point play with 1:07 left in the game. The Golden Eagles would not relinquish that lead, as Robinson and Thomas-Johnson combined to shoot 8-of-10 from the foul line in the final minute.
Sugar Rodgers' 12 first-half points matched the rest of Georgetown's scoring output before the break. Rodgers led all scorers with 23 points, but Marquette allowed only one other Hoya to score over three points – guard Monica McNutt, who tallied seven points and five rebounds.
Marquette's strong defensive front gave the Hoyas problems early and often. The Hoyas shot only 34.7% from the field and 29.4% from beyond the arc for the game.
"Obviously it was a defensive game," Mitchell said. "I think the thing I'm most proud of is that they're a team that averages 70 points, and we held them to 45."
Marquette took a one-point lead into halftime after an Angel Robinson fast break layup with 14 seconds left. Robinson finished the half with eight points, but turned the ball over eight times.
The loss for Georgetown's was only their third of the season, and their first since falling to Dayton back on November 20.
Marquette heads down I-94 to take on the DePaul Blue Demons Saturday afternoon.