The 1986 Miller High Life 400 was a NASCAR Winston Cup Series race that was held on February 23, 1986, at Richmond Fairgrounds Raceway (now Richmond Raceway) in Richmond, Virginia. Almost the entire grid was born in the United States of America; Canadian Trevor Boys was the only foreigner. Individual winnings for this event ranged from the winner's share of $37,880 ($93,642 when adjusted for inflation) to the last-place share of $2,515 ($6,217 when adjusted for inflation); the total prize purse stood at $225,435 ($557,291 when adjusted for inflation).