The 20-cent Rainbow pick six at Santa Anita will have a mandatory payout on Saturday, the track announced late Sunday afternoon.

Through Sunday, the bet has a carryover of $843,235. There has not been a single ticket winner since Jan. 1. The bet has a carryover provision on days in which there is more than one winning ticket.

The carryover provision does not apply on days with a mandatory payout. Assuming there is not a single winning ticket on Friday's program - the next day of racing at Santa Anita - the pool of new money is expected to exceed $4 million, track officials said.