b1 means the horse is wearing blinkers for the first time. Any letter followed by a 1 signals that piece of equipment is new for that horse; a 2 means it’s the horse’s second run in it.
b1 means the horse is wearing blinkers for the first time. Any letter followed by a 1 signals that piece of equipment is new for that horse; a 2 means it’s the horse’s second run in it.