Maddox played
college basketball at Princeton. During the
2010–11 season in his senior year he led the team in blocks with 52, ranked third in the Ivy League in blocked shots at 1.7 per game, fourth in defensive rebounds at 5.0 per game, and fourth in overall rebounds at 6.9 per game, and averaged 14.0 points per game. He became the second Princeton player to have 50 blocks in a season, following
Chris Young in
2001, since blocks began being kept as a stat. He had seven 20-point games and was the first Tiger since 1984 to have two 30-point games in a season. He led his team to the Ivy League championship and the
NCAA tournament for the first time since
2004 where they were defeated by
Kentucky team 59–57 on a layup by
Brandon Knight at the buzzer. During the NCAA tournament, Maddox recorded 12 points, four rebounds, three steals and two assists. He finished his career with 822 points, 456 rebounds and 108 blocks in 104 games. ==Professional career==