N.Y. Comp. Codes R. & Regs. tit. 9, § 4112.2
(a) In early closing events, stakes and futurities no more than 12 horses on a half-mile track, or 16 horses on a track in excess of a half mile, in two tiers, allowing eight feet per horse, will be allowed to start in any dash or heat. Where there are more than 12 or 16 horses, as the case may be, declared in to start, the track conducting the event must adopt one of the following methods to be stated before positions are drawn. All elimination heats and the concluding heat must be programmed to be raced upon the same day or night unless published conditions provided otherwise.
(b) Division methods.
(1)