While at Colorado State, his teams posted three consecutive winning seasons en route to the best period of college basketball in school history.
The team had gone 5–22 the previous season, but Jankovich engineered the second-largest turnaround in the nation that year.
At Kansas State, Jankovich remains one of the winningest players in school history, playing under coach Jack Hartman.
He was a four-year starter at point guard, but played his freshman season at Washington State.
A three-time academic All-American and honorable mention All-Big Eight player, Jankovich finished his career at Kansas State in the school's top-10 in nine categories, including first in season free-throw percentage (.917) and eighth in career field-goal percentage (.510).