After leading Seton Hall to a 16–2 record as a sophomore, Wanzer enlisted in the United States Marine Corps.

He made the All-Pacific Armed Forces All-Star basketball team, and participated in the occupation of Guam.

Initially a reserve behind Al Cervi and Red Holzman, Wanzer later teamed with Davies to form a potent backcourt for the day.

[3] Wanzer served as the player-coach of the Royals for two years, and then, after the franchise moved to Cincinnati, coached for another season.

When star Maurice Stokes was permanently injured, Wanzer moved on early the following NBA season.