Trifecta wagering will be permitted on more races under a rule adopted Oct. 15 by the New York State Racing and Wagering Board.The regulatory panel loosened the existing rule that allows trifecta wagering on only races with six or more horses entered. Beginning Oct. 30, graded stakes, allowance, and handicap races will be able to offer trifecta wagering with five or more horses entered."This makes New York more competitive with other states," board member Cheryl Buley said.The board in August permitted trifecta wagering for a trial period on graded stakes races with five or more entries. That rule expires at the end of October.The new rule will be in effect for 90 days, during which time regulators will review the impact of the change. Stewards still retain the authority to require, at their discretion, a minimum of six horses for trifecta wagering.Claiming and maiden races are excluded from the new rule. If fewer than five horses end up running in what is scheduled to be a trifecta race, the trifecta wagering is cancelled and the gross betting pool is refunded.