As an all around athlete, Sebastian performed well in many sports. In football, he was a back on both offense and defense. He was very fast and a scoring threat at all times. He played on the 1960 undefeated football team and in the Peace Garden Championship game in 1961. As a full-time starter in basketball, he averaged 9.1 points a game. At times he hit with deadly accuracy from the outside. Track events – high hurdles, 440 yard dash and relays.