New York Codes, Rules and Regulations
Title 9 - EXECUTIVE DEPARTMENT
Subtitle T - New York State Gaming Commission
Chapter I - Division of Horse Racing and Pari-Mutuel Wagering
Subchapter A - Thoroughbred Racing
Article 1 - Rules of Racing
Part 4009 - PARI-MUTUEL OPERATION
Section 4009.21 - Refund-non-starter

When a horse starts. Every horse shall be considered a starter when the stall gates open on the signal of the starter, unless the stewards declare a horse or horses non-starters because, in their opinion, the horses' chances were compromised leaving the starting gate. If so, all bets on the non-starters will be refunded unless the horse wins. For placing and program purposes, the non-starters will be considered to have run for purse only. If it be determined by the stewards that a horse is declared a non-starter, the money bet on the horse shall be refunded; if such horse is part of an entry or field, such circumstances shall be treated as a scratch for wagering as provided in section 4009.20 of this Part, notwithstanding the placing of any remaining part of the entry or field.