 The following summer SLAM Magazine rated him as the top prospect in the class of 2011 before he appeared at the June 2010 Pangos All-American Camp. After leading his team in rebounding in the camp's "Cream of the Crop" All-Star finale game, Miller earned team MVP honors. In June 2010, Miller was the sixth man for the gold medal-winning team at the FIBA Americas Under-18 Championship. He led the team in rebounding average for the tournament, was second in scoring average, and made the game-winning 3-point shot with 25 seconds remaining in the championship game against Brazil. His 2010 average of 9.2 rebounds per game was tied with Chris Bosh's 2002 average for second in the history of USA Basketball's U18 competition behind only Shareef Abdur-Rahim 1994 10.1 average. Like most elite level high school players, Miller participated on the summer Amateur Athletic Union circuit, including showcase events such as the July NYC Summer Classic.
