Bumper - The name given to a flat race for National Hunt horses in which they gain racing experience before going hurdling or chasing.

Rule 4 - If a horse is withdrawn and there is insufficient time to form a new market the remaining horses in the race are subject to a deduction if they win or are placed. These are calculated according to the starting price as follows: 3/10 or longer odds - 75p in the £1, 2/5 to 1/3 - 70p, 8/15 to 4/9 - 65p, 8/13 to 4/7 - 60p, 4/5 to 4/6 - 55p, 20/21 to 5/6 - 50p, Evens to 6/5 - 45p, 5/4 to 6/4 - 40p, 13/8 to 7/4 - 35p, 15/8 to 9/4 - 30p, 5/2 to 3/1 - 25p, 10/3 to 4/1 - 20p, 9/2 to 11/2 - 15p, 6/1 to 9/1 - 10p, 10/1 to 14/1 - 5p.