Two.
The first came on February 4, 2002, in a game against the Minnesota Timberwolves:
http://scores.espn.go.com/nba/recap?gameId=220204024
The second one came on April 15, 2007, in a game against the Dallas Mavericks:
http://scores.espn.go.com/nba/recap?gameId=270415006
6'10
he has four nba rings
Tim Duncan
Tim Duncan
24
Tim Duncan was born on April 25, 1976
Tim Duncan
Tim Duncan was born on April 25, 1976.
Tim Duncan was born on April 25, 1976.
Tim Duncan was born on April 25, 1976
Tim Duncan is number 21 on the San Antonio Spurs.
i hear that he is more than i hear that he is not!