Evans began his senior season well, scoring 22 points in a win over Xavier on November 24, 2017. Evans scored 22 points in a win against Kansas two weeks later and was named Oscar Robertson National Player of the Week. Evans's shooting then fell off, and he missed 15 consecutive 3-point attempts at one point. He averaged 16.5 points, 3.3 rebounds and 3.5 assists per game and led Arizona State to the NCAA Tournament. As a senior, Evans was named Honorable Mention All-Pac-12.
