Las Vegas, NV – Pierre Jackson's trey sent the game into 81, in the Las Vegas Classic title game.
Jackson finished with a team-high 23 points and hit a game-tying three-pointer with 20 seconds left in regulation, as the Bears moved to 12-0 on the year, matching their best start in school history.
Brad Heslip added 19 points in the narrow victory and Quincy Acy finished with 15 points and eight boards. Baylor remains one of six undefeated Division I teams, joining Indiana, Louisville, Missouri, Murray State and Syracuse.
The frenetic contest proved a preview of sorts for West Virginia, which announced in October that it will depart the Big East for the Big 12.
The Mountaineers (9-3), who entered with a five-game win streak, trailed by double-digits in the second half before reclaiming the lead on Darryl Bryant's free throws in the closing minutes of regulation. Bryant finished with 16 points, Jabarie Hinds had 18 and Kevin Jones notched game-highs of 28 points and 17 rebounds.