[1] Dupree won the 100m butterfly, 100m backstroke and 200m individual medley, and took second in the 50m, 100m and 400m freestyle at the Long Course Can-Am Swimming Championships.

At the Long Course Can-Am Swimming Championships he placed second in the 100m butterfly and 200m individual medley and third in the 50m, 100m and 400m freestyle.

At the U.S. Paralympics Swimming Team Trials he won the 50m and 100m freestyle, 100m backstroke and 100m butterfly.

Dupree won a silver in the 100m backstroke, bronze in the 50m freestyle at the 2013 IPC World Championships.

Dupree won a bronze medal in the 100m backstroke at the IPC Swimming World Championships.