Keska competed collegiately for University of Oregon from 1992 to 1996, where he was an All-American (10,000 m) and three time PAC-10 Conference Champion (10,000 m in 1995, 1996, cross-country in 1995).
Keska's academic and athletic achievements took place at the University of Oregon from 1992 to 1996, where he demonstrated his prowess in the 10,000 meters as an All-American and won three consecutive PAC-10 titles in both the event and cross-country.