Answer:

OTB

Answer	Crossword Clue
OTB	Horse picker's hangout, briefly
OTB	Wagering loc.
OTB	Gambling parlor letters

OTB	Pony-gambling venue that closed in NYC in 2010
OTB	NYC betting setting
OTB	Gambler's place, for short
OTB	Place to put down stakes, briefly
OTB	Remote wagering (abbr.)
OTB	Gambling inits.
OTB	Legal bookie bus.
OTB	Gambling parlor's letters

OTB	Gambling site, briefly
OTB	Remote way to play the ponies: abbr.
OTB	Wagering option, briefly
OTB	Place to play the ponies, briefly
OTB	Racing form site, briefly
OTB	Tout's hangout, briefly
OTB	Parlor letters
OTB	Tout's hangout, for short

OTB	Wagering locale: Abbr.
OTB	Simulcast site, briefly
OTB	Wagering site, initially
OTB	Wagering venue, in brief
OTB	Legal gambling parlor, briefly
OTB	Place to make money on a show, briefly
OTB	Wagerers' mecca: Abbr.
OTB	Parlor initials

OTB	Place to play ponies, briefly
OTB	Handicapper's hangout, briefly
OTB	Horse player's hangout, for short
OTB	Bettor's hangout, briefly
OTB	Gambler's haunts, briefly
OTB	Gambling letters
OTB	Place to play faves
OTB	Place to play favorites, briefly

OTB	Bookie's venue, briefly
OTB	Handicapper's hangout, for short
OTB	Where many races are seen, briefly
OTB	Daily dbl. wagering site
OTB	Horse-player's hangout, briefly