The U.S. Mid-Amateur was held at Old Warson Golf Club in 1999 , and Bellerive was used in the 36-hole stroke play qualifying portion . In 2001 , the course was hosting practice rounds for the WGC-American Express Championship scheduled for but the event was abandoned as a result of the terrorist attacks on the morning of the practice The U.S. Senior Open , a senior major , was held at the course in 2004 and won by Peter Jacobsen
terrorist attacks
September 11 attacks
Bellerive Country Club