Last 45 races, 7 finished under yellow [15%]:
In the last 45 Nextel Cup races [beginning 2003 season] seven races have ended under the yellow flag/or due to rain: Daytona, Feb 2003, #15-Michael Waltrip wins, called due to rain Martinsville, March 2003, #24-Jeff Gordon, wreck/yellow Richmond, May 2003, #25-Joe ...