South Dakota State (11-5, 2-1 Summit) got a balanced all-around game from Wolters, who also had seven assists, six rebounds and four steals. Most of Dykstra's points came from long range, as he hit five 3-point baskets.
Chad White chipped in with 14 points.
South Dakota State hit nearly 51 percent of its shots from the floor and had a 14-8 scoring advantage through turnovers.
Maryland point guard Melo Trimble, considered a lock to leave the program before struggling in the second half last season, has withdrawn from the NBA draft and will return for his junior season.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.