Chasing a carryover of more than $1.1 million, and a mandatory payout this afternoon, bettors have added more than $2 million the pool of the 20-cent Rainbow pick six, which starts in Sunday's fifth race.

The pool must be paid out on Sunday, the closing day of the track's autumn meeting.

The first leg of the bet is a $30,000 claiming race for maidens at 5 1-2 furlongs with a field of 12. Mayan Warrior (3) is the 8-5 favorite in early betting.

Post time is 1:25 p.m., Pacific.