During the summer before his freshman year at the University of Kansas, LaFrentz was selected to the 1994 U.S. Olympic Festival North Team and averaged 11.8 ppg.

He played with future NBA Hall of Famer Paul Pierce and journeyman Scot Pollard while at Kansas.

The 1996–97 team finished the season ranked #1 in the country, but lost to Arizona (led by future NBA stars Jason Terry and Mike Bibby) in the Regional Semifinal.

but played in just 12 games as a rookie and missed the majority of the season after suffering a torn ACL in his left knee against Dallas on February 25, 1999.

It was there at NBA All-Star Weekend that LaFrentz was on the receiving end of Jason Williams' legendary "elbow pass".

In his third year (2000–01), he started 74 of the 78 games he played in and averaged 12.9 ppg., while ranking seventh in the league in blocks at 2.6 bpg., tied for 25th in rebounding with a 7.8 rpg.

[3] LaFrentz was traded by the Nuggets with Nick Van Exel, Avery Johnson, and Tariq Abdul-Wahad to the Dallas Mavericks for Juwan Howard, Donnell Harvey, Tim Hardaway and a 2002 first-round pick on February 21, 2002.

[4] The Celtics acquired LaFrentz from the Dallas Mavericks, along with Chris Mills, Jiri Welsch and a first-round draft choice, in exchange for Tony Delk and Antoine Walker on October 20, 2003.