Davis was 4 of 5 from the floor and made 6 of 7 free throws. Murphy was 4-of-7 shooting and 4 of 5 from the line. Brenton Scott added nine points, and Jordan Barnes made two 3-pointers and finished with eight points for the Sycamores (2-3), who shot 50 percent (25 of 50) from the floor.
Anthony Hughes and Steven Davis scored 10 points apiece for Missouri-St. Louis.
The Tritons led 26-20 with 4:37 remaining in the first half. But Indiana State closed on a 17-8 surge for a 37-28 halftime lead. Davis scored seven points during the stretch.
Missouri-St. Louis pulled within seven points early in the second half but didn't get closer.