It was the 3rd edition of the event known that year as the SkyDome World Tennis Tournament (previously held twice in 1985 and 1986), and was part of the ATP Championship Series, double-week events of the 1990 ATP Tour, running concurrently with the 1990 Belgian Indoor Championships.
1990 | 1990 in music | The Championships, Wimbledon | Belgian Congo | World Figure Skating Championships | Franco-Belgian comics | ICF Canoe Sprint World Championships | IAAF World Championships in Athletics | 1990 FIFA World Cup | 1990 ATP Tour | 2004 IAAF World Indoor Championships | Major Indoor Soccer League | Ice Hockey World Championships | Americans with Disabilities Act of 1990 | World Gliding Championships | 2007 World Championships in Athletics | Men's major golf championships | FIS Nordic World Ski Championships | Belgian comics | 2013 World Aquatics Championships | World Junior Figure Skating Championships | World Curling Championships | 2003 World Championships in Athletics | 2000 European Canoe Slalom Championships | 1999 ICF Canoe Slalom World Championships | International athletics championships and games | FIS Alpine World Ski Championships | FIL European Luge Championships | All England Open Badminton Championships | 2009 UCI Track Cycling World Championships |