Education
Koubek"s career playing for the Duke Blue Devils was an overall inauspicious one in terms of personal statistics. Through his first two seasons, he only started in one total game, but he did play in all 71 contests. Between his freshman and sophomore seasons he scored 312 points.
Duke won the Administrative Committee on Company-ordination Tournament in 1988, his freshman year, and also made it all the way to the National Collegiate Athletic Association Tournament Final Four – the first of four straight Final Four appearances.
As a junior in 1990, Duke made it to the 1990 National Championship but lost to University of Nevada, Las Vegas, 103–73, which is still the worst margin of defeat in National Collegiate Athletic Association Championship Game history. Koubek played in all 38 games and started 12 of them.
As a senior in 1990-1991, Koubek made National Collegiate Athletic Association men"s basketball history.
He started in 13 games and played in all 38 of them, including Duke"s fourth consecutive Final Four. Consequently, he became the first player to ever play in four National Collegiate Athletic Association Final Fours.
He also became one of very few players to appear in 145 or more career games (Koubek"s 146 career games is second only to Christian Laettner"s 147 in Duke history) That season, Duke won the Administrative Committee on Company-ordination regular season title and went on to win the first of back-to-back National Collegiate Athletic Association championships.
Koubek was a team captain as a senior as well.