With a $1.7 million carryover, an estimated pool of $5 million and a mandatory payout, Saturday's Rainbow 6 at Gulfstream Park has the potential to provide a massive score. The Rainbow 6 begins with Race 9, the Sand Springs, at 3:34 p.m. ET. and concludes with Race 14, the Florida Derby. National handicapping champion Jonathon Kinchen has handicapped each of the six races! With the sequence featuring large and competitive fields, you NEED to see what Kinchen has to say before making any Rainbow 6 picks of your own.

Kinchen is one of the nation's most successful and recognizable horseplayers. An analyst for Fox Sports' "Saturday at the Races," Kinchen won the National Horseplayers Championship Tour in 2015, a demanding, yearlong series of handicapping events across the country. That same year, he became the only player in history to have both of his entries qualify for the final table of the National Horseplayers Championship.

In addition, Kinchen has scored huge on some of racing's biggest days. At the 2015 Kentucky Derby, he cashed for $150,000 after nailing a Pick 6 and a cold Pick 3 that paid $50,000.

He's currently riding a hot streak for SportsLine. In the Fountain of Youth Stakes last month, Kinchen nailed an $80 win bet on Ete Indien that paid a healthy $344. And two weeks ago in the Beholder Mile, he gave out a $50 exacta that paid $550.

Now, Kinchen has handicapped the Rainbow 6 at Gulfstream Park for Saturday, made his picks and constructed his Rainbow 6 tickets.

We can tell you that Kinchen is high on Mr Dumas, a 12-1 longshot in Race 13, the Appleton Stakes. Kinchen likes that Mr Dumas is making both his second start for trainer Mike Maker and his second start after a layoff. Kinchen has designated Mr Dumas as one of his "A" horses in Race 13.

In addition, Kinchen is high on another double-digit longshot in the Rainbow 6! Kinchen believes this horse will run well despite stepping up in class on Saturday! Kinchen's including this horse as an "A" on his Rainbow 6 tickets, and so should you! You NEED to see Kinchen's analysis before making any picks of your own.

What is the optimal Rainbow 6 for Saturday at Gulfstream Park? And which double-digit longshot do you need to jump on? ... Join SportsLine now to get picks for the Rainbow 6 at Gulfstream Park for Saturday, all from an unmatched handicapping champion!