HALLANDALE BEACH, Fla. – There will be $16 million in purse money to be won by the owners of the 12 horses who will compete in the world’s richest horse race, the Pegasus World Cup, on Saturday at Gulfstream Park. But there could be even more money on the line here for horseplayers Sunday due to a mandatory dispersal of the Rainbow 6 jackpot, which hasn’t been hit since Dec. 7. A carryover in excess of $4 million could entice upward of $12 million to $14 million in fresh money for Sunday’s Rainbow 6 sequence, which covers the final six races on a 12-race program that begins at noon Eastern. For comparison, a carryover of $4,503,332 on March 26, 2016, produced a final pool of more than $15 million by the time the last 20-cent wager went through the mutual machines. The payout to those who had selected all six winners was a generous $85,456. The largest Rainbow 6 payoff here occurred May 25, 2014, when the late Dan Borislaw collected $6,678,939 for having the only winning ticket on a seemingly impossible sequence comprised entirely of races with 12- to 14-horse fields. A mandatory payout of the pool had been scheduled for the following day. Solving Sunday’s Rainbow 6 will not be as daunting, with only 50 starters, excluding also-eligibles, in the six-race sequence. But those making it to the nightcap with a perfect ticket still must pick the winner from a field of 14 bottom-level claiming sprinters to cash. Complicating matters is the likelihood of rain Sunday, which could seriously impact the sequence, most notably the opening two legs, both turf races. A brief look at the sequence follows: ◗ Race 7 – Scheduled for a mile on the grass for older fillies and mares under high-priced starter-allowance conditions. Four entrants emerge from a similarly conditioned event here Jan. 12 won by the 22-1 Clyde’s Queen, including likely favorite O. K. Kay. Those looking for new faces might try the New York invader Hardly Mate or a couple of in-form fillies stepping up off recent victories, Farcical Feline and Feed Me Carats. ◗ Race 8 – Also carded for grass, at 7 1/2 furlongs under allowance/optional-claiming conditions for 3-year-old fillies. Nootka Sound, idle since finishing far back after a troubled trip at Ascot, will shed her blinkers while going postward the likely favorite for trainer Wesley Ward. Anabella Queen, second against similar company behind the 9-5 Go Noni Go in her 2-year-old finale, also is logical, as is Camila Princess, one of only two multiple winners in the lineup, along with Nikki’s Cause. Should rain move the race to dirt, then main-track-only entrants Elevenses and C. S. Incharge suddenly become major players. ◗ Race 9 – Not much to choose from in this 5 1/2-furlong bottom-level maiden claimer. The class-dropping Dreaming of Jo Jo, with leading rider Luis Saez aboard, might be a single on some tickets, with Pekin, back to dirt and second under similar conditions last month, perhaps his chief rival. First-time starters Octopythius and Kid Kantharos also figure to be used on many spread tickets. ◗ Race 10 – Bottom-level female claiming sprinters square off at 5 1/2 furlongs. Trainer Victor Barboza Jr. may have the upper hand with the speedy pair of Para Vivir and Princess Knoll. First Distinction, a beaten favorite in three of her last four starts, also will garner plenty of attention once again. ◗ Race 11 – Three-year-old fillies going six furlongs under starter-allowance and optional-claiming conditions vie in the penultimate leg of the Rainbow 6. Dance Rhythms, Saez up, steps up off a well-graded maiden win for trainer Dale Romans and is a must-use in a field loaded with pace. Stormymeister, hard used in a duel for the lead against similar company in her final start at 2, looks like the speed of the speed from the inside, while Lady Freedom demands respect as the only multiple winner in this lineup. ◗ Race 12 – Good luck getting through the nightcap to those still alive, with the “all” button perhaps the answer for those with a big bankroll. Several of these exit a similarly conditioned claiming sprint on Jan. 13 won by the 60-1 Francois, with Starship Apollo the best of that group. A couple of new faces and giant question marks are the class droppers Paden, for trainer Mike Maker, and Bourne Country, who will have to work out a trip from post 14.