The 1986 Coca-Cola 600 was a Winston Cup Series (now Nextel Cup) event held at Lowe's Motor Speedway on May 25, 1986. Dale Earnhardt went by Tim Richmond late and held Richmond off by 1.5 seconds for the win. Earnhardt also used the win to expand his championship lead, enjoying a 144-point margin on Darrell Waltrip (5th). Stats