Posh Alexander scored a career-high 20 points and host St. John’s recorded a 96-78 victory over Utah Valley Saturday afternoon in Queens, N.Y.The Red Storm (9-7) won for the third time in four games and gradually pulled away in their final nonconference game after scheduling the matchup on Wednesday.Alexander reached a career-high for the second straight game after getting 18 in Monday’s four-point win at No. 23 Connecticut. He made 8 of 15 shots and had three of St. John’s 13 steals.Julian Champagnie, the Big East’s leading scorer, added 13 of his 19 points in the second half while shooting 7 of 16 as St. John’s placed five in double figures.Vince Cole added 15 for the Red Storm, who shot 47.4 percent overall and 36 percent from 3-point range. Isaih Moore added 13 while Rasheem Dunn contributed 11 for St. John’sTrey Woodbury scored 23 points for Utah Valley (5-6), which shot 60 percent and saw a three-game winning streak halted in its second game ever against a current Big East school. Jamison Overton added 18 for the Wolverines, whose other matchup against a Big East opponent was a 66-55 loss at Marquette on Nov. 12, 2007.Evan Cole finished with 17 and Fardaws Aimaq posted a double-double with 10 points and 13 rebounds. Aimaq, the nation’s leading rebounder, also committed five of Utah Valley’s 22 turnovers and exited for good with about 5 1/2 minutes left due to a right ankle injury after getting tangled up with St. John’s forward Josh Roberts.