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- Saddlecloth: A cloth which goes under the saddle to identify the horse by number and, sometimes in major races, its name.
- Salute the judge: The horse wins the race.
- Satchel swinger: A bookmaker.
- Score up: In harness racing the movement of horses behind the mobile barrier before a start is made.
- Scraping paint: Racing tight, or close, to the running rail.
- Scratch: To be taken out of a race before it starts.
- Sectionals: Intermediate times recorded during a race.
- Set the board: When a bookmaker completes the information shown on the betting board, by listing each runner in a race and their respective odds, he or she is said to have set the board.
- Settling: A meeting between bookmaker and punter at which money is exchanged in settlement for past credit betting. The majority of settling now takes place at the course prior to the race.
- (Shadow) Nose Roll: A wide lambs wool covered noseband designed to keep the horse from seeing his own shadow.
- Shillelagh: Colloquial term for a jockey’s whip.
- Shin sore: Inflammation of the membrane of the cannon bone.
- Short half-head: The second-smallest winning margin. In Australia a NOSE is the shortest margin a horse can win by.
- Shorten: When the odds of a horse decrease, usually because a lot of money has been wagered on that horse.
- Shrapnel: The term used by a bookie's bagman for a heap of small coins.
- Silks: A jockey's breeches and bib or cravat
- Sire: The father of a horse.
- Skinner: A "result" for a bookmaker which entails very little, or no pay out whatsoever on a race.
- Slaughtered: Said of a jockey who has ridden a horse so badly as to be the main cause of it losing a race.
- Sling: A sum of money given as gratuity or bonus generally by an owner to a trainer, jockey or strapper.
- Smarty: A somewhat derogatory term for a person not to be trusted, especially with privileged stable information.
- Smoky: A well supported horse with no apparent form to justify its price.
- SP : An illegal "off course" operator - a starting price bookmaker. The term SP is also used by racing officials to declare the official starting price of a horse.
- Special: see Best bet.
- Speedy squib: A horse which has a reputation for beginning races extremely fast and running out of steam before the winning post.
- Spell: The resting period for a horse between preparations or racing.
- Spin: An expression for a five pound note (pre-1966 currency).
- Spot: A term used for one hundred dollars.
- Spring Grand Slam: Informally describes the treble of the Caulfield Cup, Cox Plate and Melbourne Cup.
- Sprout wings: To accelerate surprisingly in the straight to defeat a leader who looked certain to win.
- Stake: The sums of money deposited or guaranteed by the parties to a bet.
- Stakes races: Group one, group two, group three or listed races.
- Stayer: A horse that specialises in longer distance races.
- Stewards: Officials who run the race meeting and are responsible for enforcing the Australian Rules of racing.
- Stick: Jockey’s whip.
- Sticks: Hurdles or fences in jumping races.
- Stipes: Another term for the Stewards. (Or Stipendiary Stewards)
- Stirrups: Metal "D" shaped rings into which a jockey places his/her feet. Also known as "irons".
- Stone motherless: Expression used to indicate that a horse is running a clear last in a race, or is tailed off at the finish.
- Stonebonker: A good thing in a race. A horse considered to be over the line.
- Straight out: Betting to win only
- Strapper: The person who attends to, grooms, and usually leads the horse around the mounting yard.
- Superfecta: An exotic type of bet which requires a punter to select the first six horses to cross the finish line in the exact order. Only previously offered in New South Wales; now replaced by the First Four. (Compare with the usual U.S. definition, which is similar to the Australian/New Zealand First Four.)
- Swimmer: Horse which performs very well on rain effected tracks.
- Swooper: A horse which charges home at the end of a race.
Read more about this topic: Glossary Of Australian And New Zealand Punting