untried
A stallion that has not been bred.
walkover
A race in which only one horse competes.
washed out
A horse that becomes so nervous that it sweats profusely. Also known as “washy” or “lathered (up).”
weanling
A foal that is less than one-year-old that has been separated from its dam.
weight-for-age
An allowance condition in which each entrant is assigned a weight according to its age. Females usually receive a sex allowance as well. (Compare with a handicap race.)
wheel
Betting all possible combinations in an exotic wager using at least one horse as the key. See part wheel.