Julian Champagnie finished with 21 points and 12 rebounds. Greg Williams Jr. added 17 points and five steals and LJ Figueroa scored 15 points for St. John's (16-15, 5-13 Big East).
Marquette's Sacar Anim hit a 3-pointer and then, after Figueroa made 1 of 2 free throws on the other end, converted a three-point play with 44 seconds left to make it 88-86. Rutherford missed a 3-point shot with 15 seconds to go but the Golden Eagles committed two turnovers from there and St. John's held on.
Marquette, which has lost three consecutive games and six of its last seven, scored 58 second-half points, a season high for the team.
Markus Howard had 30 points for the Golden Eagles (18-12, 8-10) and Anim added 22 points and eight rebounds.
Williams and Figueroa hit back-to-back 3s to make it 12-0 about four minutes into the game and St. John's led by as many as 21 points in the first half. Anim scored 20, and Howard added 18, after halftime as the Golden Eagles shot 17 of 34 from the field and hit eight 3-pointers.
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Elements of this story were generated by Automated Insights, http://www.automatedinsights.com/ap, using data from STATS LLC, https://www.stats.com
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