Duop Reath is 25 years of age as of 2022.

He was born on June 26, 1996. Since his childhood, he was an athletic kid and very much interested in the sport.

He attended the Girrawheen Senior High School and graduated from there when he was 18 years old. The following year he moved to the US and played collegiate basketball there.

From 2014 through 2016, Reath attended Lee College in Baytown, Texas, for his freshman and sophomore seasons. Duop averaged 6.9 points and 5.4 rebounds per game in the 2014-15 season. He averaged 14.6 points and 8.4 rebounds per game as a sophomore (2015-16).