The Rainbow Pick 6 at Gulfstream Park will have a carryover in excess of $1.3 million when racing resumes on Thursday. If nobody hits the jackpot on Thursday or Friday, the entire pool will be dispersed on Saturday’s penultimate card of the 2011 meet. The Rainbow Pick 6 has a 10-cent minimum. The pool is only paid out in full if there is a single winning ticket. With interest in the wager expected to be high, the pool for the bet, if not hit Thursday or Friday, could be as high as $5 million by the beginning of the sequence Saturday. The expected windfall in handle should the jackpot remain intact until Saturday will only add to the huge increases in business here this season compared to the 2010 meet. After the first 73 days of the 79-day session, ontrack handle was up 14 percent, all-sources handle was up 7.8 percent, and ontrack attendance was up 11.6 percent. DRF MORNING LINE: Get out of the gate fast every day - sign up for DRF's free newsletter