Royer made 7 of 8 3-point attempts and Eversley was 3 for 3 as the Mustangs (14-12, 9-6 Big West) converted 12 of 15 shots beyond the arc and shot 58 percent overall.
Jamal Johnson added nine assists for Cal Poly, which swept the season series from the Matadors.
The Mustangs scored 12 straight points to take a 23-9 lead and closed the first half with an 8-0 run to go ahead 38-22. The lead reached as many as 21 points in the second half when Eversley hit a 3-pointer with 13:12 remaining to make it 57-36.
Wisconsin's Nigel Hayes did his best Stone Cold Steve Austin impression and brought the pain to some fellow Badgers.
Avery Johnson's first season as a college coach was a success by most measures, and he'll aim to keep the Crimson Tide rolling in the right direction.
Malik Newman, who had widely been considered a one-and-done player, has chosen to transfer to Kansas to continue his college career.