Mitchell made three free throws with 1:26 remaining to give the Aztecs a 60-58 lead, and Amauri Hardy split a pair of free throws with 1:02 left to cap the scoring. The Runnin’ Rebels had the final possession, but Nick Blair missed a 3-pointer at the buzzer.
Watson added 13 points for San Diego State (18-9, 10-4 Mountain West Conference), which won its fifth straight game.
The Aztecs improve to 2-0 against the Runnin’ Rebels for the season. San Diego State defeated UNLV 94-77 on Jan. 26. San Diego State plays Utah State on the road on Tuesday. UNLV takes on Nevada on the road on Wednesday.