In 2018 Wiskus began competing with the Minnesota Golden Gophers. In February he competed at the 2018 Winter Cup where he placed ninth in the all-around and won silver on floor exercise behind Sam Mikulak. At the 2018 NCAA National Championships Wiskus helped Minnesota finish second as a team and individually he won silver in the all-around behind Yul Moldauer. At the U.S. National Championships Wiskus placed 19th in the all-around.