After losing a 12-round split decision to Daniel Zaragoza in June 1989,[2] Banke captured the WBC Super Bantamweight Title in April 1990 with an upset ninth-round TKO victory over Daniel Zaragoza.
Banke lost five of his last six bouts, including a 12-round WBC rematch title loss to Zaragoza in their third meeting.
After a ten-round decision loss to winless 0-8 Mexican journeyman Juan Francisco Soto in December 1993, Banke retired at age 29 with a record of 21–9 with 11 knockouts.
Banke, who battled drug use during his career and overcame it, was diagnosed with AIDS in 1995, approximately two years after his final fight.
Banke, who resides in Los Feliz, California, has Chronic traumatic encephalopathy, better known as Dementia Pugilistica, an aftereffect from his professional boxing career.