For the 2009–10 season, Billups reverted to wearing #1, the same number he wore with the Pistons. Teammate J. R. Smith, who had previously worn #1 since being acquired by the Nuggets in 2006, changed to the #5 jersey. On November 27, 2009, in the Nuggets' 128–125 win over the New York Knicks, Billups scored 32 points while teammate Carmelo Anthony scored 50. This made them only the third duo in NBA history to score at least 30 and 50 points respectively. On February 5, 2010, Billups set a career high in points with a 39-point performance in a road win over the Los Angeles Lakers with 27 of them coming from 9 three-pointers. Billups was chosen as the replacement by David Stern for injured New Orleans Hornets point guard Chris Paul at the 2010 NBA All-Star Game. During the 2010–11 season, he averaged 16.5 points per game, 5.3 assists per game, and 2.5 rebounds per game in 32.3 minutes per game. His .441 three point field goal percentage was a career high.