Conn. Agencies Regs. § 12-574-B15
(j) Failure to select a winner and race cancellations.
(k) Dead heats.
(2) In the event of a dead heat in both races of the daily double, four winning combinations result. The amounts wagered on these four winning combinations are deducted from the net pool to determine the profit. This profit is divided into four equal parts, and each part, in turn, divided by the four amounts mentioned above. This determines the profit per dollar, to which is added the amount of the wager.
(l) Effect—horse scratched, excused.