At an early age Glenn Michibata won the Canadian Nationals Junior Under 12, and Junior Under 18 twice. He was the first Canadian in the junior ranks to reach quarter finals of Junior Wimbledon and paved the way for Canadian junior players coming up the ranks.

Overall he was ranked in the top ten from 1980 to 1991 and represented Canada in the Davis Cup many times.

Glenn burst onto the professional tennis scene in 1983 and during 1983 and 1984 he was the first Canadian to reach the Singles ranking in the top fifty.

Glenn, along with his Canadian doubles partner Grant Connell, ruled the tennis world in doubles in the late 1980s and early 1990s. Achieving excellent results in Grand Slam tournaments such as Australian, Wimbledon and the US Open. Together, they won the bronze at the 1988 Seoul Olympics and in 1993 were ranked first in the world for a period of time.

Recently, Glenn was inducted into the Canadian Tennis Hall of Fame and has coached at a university in California.