In his 13-year career he played with the New Jersey Nets, Denver Nuggets, New York Knicks, Charlotte Hornets, Milwaukee Bucks, and Miami Heat of the National Basketball Association.

He then played for the Efes Pilsen basketball club in Turkey and Marinos de Oriente in Venezuela and had brief NBA stints with the New Jersey Nets and the Denver Nuggets.

On March 26, 1993, Mason scored a then career high 30 points, along with grabbing 16 rebounds, in a 105–95 win against the Los Angeles Lakers.

[6] In 1994, the Knicks reached the NBA Finals for the first time since 1973, but lost in seven games to the Hakeem Olajuwon-led Houston Rockets.

In Mason's Charlotte debut, on November 2, 1996, he recorded a double-double with 18 points and 15 rebounds in a 109–98 victory over the Toronto Raptors.

[9] On February 17, 1997, Mason scored a season-high 28 points (on 11 of 11 shooting from the field), grabbed 12 rebounds, and recorded 9 assists in a 124–110 win against the Orlando Magic.

[10] In the 1996–1997 season, Mason recorded career high averages in minutes played (43.1), points (16.2), rebounds (11.4) and assists (5.7).

Despite a strong personal showing in the first round of the playoffs, averaging 13 points and 12 rebounds a game, Mason and the Hornets were eliminated by his former team, the Knicks, in a sweep.

On March 31 of that season, Mason recorded a triple-double with a career-high 31 points, 14 rebounds, and 11 assists, in a 110–101 win against the Raptors.

[16] In 2000, Mason was traded to the Miami Heat along with Eddie Jones, Ricky Davis and Dale Ellis for Jamal Mashburn, P. J.

Mason, however, virtually disappeared in the playoffs, taking only 13 shots and averaging a mere 5.3 points and 3 rebounds in three games.

The identity of the involved player has been contested since the song's release, with many long suspecting the Knick in question to have been John Starks, Mason's teammate of several years.

[21] He completed his eligibility for the 2009–10 St. John's Red Storm, and he went on to try out with the Miami Heat,[22] before playing for teams such as the Sioux Falls Skyforce and Cholet Basket.