Gulfstream Park has scheduled a mandatory payout of the 20-cent Rainbow 6 jackpot pool for Saturday, April 25.

The carryover stood at $937,087.86 on Friday after no one hit the jackpot for the 21st consecutive program, since March 18. The Rainbow 6 jackpot is paid out only when there is a single ticket sold with all six winners. On days when there is no single winning ticket, 70 percent of that day’s pool goes back to those bettors holding tickets with the most winners while 30 percent is carried over to the jackpot pool.

OZONE PARK, N.Y. – With the help of two supplemental nominations, the $100,000 Danger’s Hour finally attracted enough entries to be carded as the featured race on Sunday’s nine-race card at Aqueduct.

On the flip side, the $100,000 Memories of Silver, scheduled for Sunday, was not carded, though it is likely to be brought back for Wednesday.

Prospect Park, fourth in the $1 million Santa Anita Derby on April 4, is back in training after being diagnosed with an illness this month.

Prospect Park is based at the San Luis Rey Downs training center in northern San Diego County with trainer Clifford Sise.

“He’s back tack-walking,” Sise said. “He seems back to his old self again. He had something viral that was bugging him.”

Frammento, still hoping to make the Kentucky Derby field after finishing fourth in the Blue Grass Stakes, returned to the work tab Thursday at Keeneland, going an easy four furlongs in 51.20 seconds under Sophie Doyle.

“You’ve just got to keep him together, that’s all,” trainer Nick Zito said of the maintenance move.

Bayern, unraced since winning the Breeders’ Cup Classic at Santa Anita last November, worked seven furlongs from the gate in 1:24.40 on Wednesday at Santa Anita.

The exercise was one of Bayern’s final major workouts before a scheduled start in the $500,000 Churchill Downs Stakes at seven furlongs May 2, a race on the Kentucky Derby undercard.

“He needed it,” trainer Bob Baffert said of the workout.

OZONE PARK, N.Y. – Salutos Amigos will be given a freshening and point to a summer campaign, with the Grade 1 Forego at Saratoga the midrange objective, trainer David Jacobson said Thursday.

Salutos Amigos is back at Aqueduct following a trip to Dubai, where he finished eighth, beaten 5 1/2 lengths by Secret Circle, in the $2 million Dubai Golden Shaheen on March 28. Jacobson said Salutos Amigos developed “a few complications” before the race that likely prevented him from running his best.

OZONE PARK, N.Y – Condo Commando returned to the work tab Thursday at Aqueduct with a half-mile move in 48.67 seconds in preparation for the $1 million Kentucky Oaks at Churchill Downs on May 1.

It was the fastest of nine breezes at the distance Thursday morning and the first breeze for Condo Commando since her 2 1/2-length victory in the Grade 2 Gazelle Stakes at Aqueduct on April 4.

ARCADIA, Calif.- Papacoolpapacool will be a heavy favorite in Saturday’s $75,000 La Puente Stakes for 3-year-olds on turf at Santa Anita. The race could be his ticket out of town.

Trainer Phil D’Amato said on Thursday that Papacoolpapacool could be sent to Penn National for the $500,000 Penn Mile for 3-year-olds on turf May 30 if he wins Saturday.

“If he runs well, we’ll take a look at that race,” he said. “It’s one step at a time.”

BOYNTON BEACH, Fla. – Two of the leading candidates for this year’s Kentucky Derby, Frosted and Upstart, had a very good morning Thursday at Palm Meadows.

The presence of My Miss Sophia in the Doubledogdare Stakes on Friday at Keeneland might have triggered fans to think of an older mare with a similar name: Don’t Tell Sophia.

Second to Untapable in the Breeders’ Cup Distaff last fall at Santa Anita, Don’t Tell Sophia is nearing her first breeze of the year, according to Keeneland-based trainer Phil Sims.

“I’m ready to start tightening the screws on her,” said Sims. “The main goal is to get her back to the Breeders’ Cup here in October, so we’re working backward from there and just taking our time with her.”