Horse Betting Expressions

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A   |   B   |   C   |   D   |   E
F   |   G   |   H   |   I   |   J
K   |   L   |   M   |   N   |   O
P   |   Q   |   R   |   S   |   T
U   |   V   |   W   |   X   |   Y   |   Z

Unbackable	A horse which is quoted at short odds that punters decide is too short to return any reasonable amount for the money they outlay.
Underlay	A horse racing at shorter odds than seems warranted by its past performances.
Under Starters Orders	The starting of a race (also referred to as Under Orders).
Under Wraps	A horse under stout restraint in a race or workout.

Value

Getting the best odds on a wager.

Wager	Another term for a bet.
Walkover	A race in which only one horse competes.
Warming Up	Galloping a horse on the way to post.
Weigh In/Out	Weigh In/Out - The certification, by the clerk of scales, of a rider's weight before/after a race. A jockey weighs in fully dressed with all equipment except for his/her helmet, whip and (in many jurisdictions) flak jacket.
Weight-For-Age	A practice that allows horses of different age and sex to compete on equal terms. The weight a horse carries is allocated on a set scale according to its sex and age.
Wire	The finish line for a race.

Yearling	A horse in its second calendar year of life, beginning January 1st of the year following its birth.
Yielding	Condition of a turf course with a great deal of moisture. Horses sink into it noticeably.