Grant Riller scored seven of his game-high 21 points in overtime and the College of Charleston beat Siena 68-60 in Friday night's season opener for both teams.
Joe Chealey scored 17 points for the Cougars, who, after trailing by as many as seven, led 28-25 at halftime behind Riller's eight points. Nick Harris finished with 11 points and nine rebounds.
Riller's two free throws put the Cougars up 61-56 in overtime, his 3-pointer with 1:02 left gave them a six-point lead and he capped the game with a layup off a steal.
His free throw with seven seconds left in regulation put Charleston up 53-51, but Jordan Horn's layup at the buzzer tied it.
Prince Oduro scored 11 points and grabbed 10 rebounds in his college debut for Siena, which graduated five seniors and lost 72 percent of its scoring and 68 percent of its rebounding from last year's team. Nico Clareth scored 15 points and Khalil Richard added 14.