Jonesboro has been working sharply at Remington Park and is being considered for a start in the Grade 3, $100,000 Ack Ack Handicap at Churchill Downs on Nov. 6, said his trainer, Randy Morse. \nThe horse would be cutting back to a mile for the race after finishing an uncharacteristic seventh last out in the Grade 2, $500,000 Hawthorne Gold Cup. Jonesboro was one of the top choices in the mile and a quarter race run on a wet track at Hawthorne on Oct. 3. \n"He didn't like the mud," Morse said. "He didn't like the going."\nJonesboro has since returned to his Remington base and on Oct. 19 breezed a half-mile in 48 seconds. The move was the second fastest of 63 at the distance. Jonesboro is in the midst of a strong year, having won the Grade 2 Cornhusker at Prairie Meadows in June with a career-best Beyer Figure of 109, and the Grade 3 Texas Mile at Lone Star Park in April with a Beyer of 103. \n"I don't know exactly where we're going to run him next," said Morse, who trains Jonesboro for Mike Langford. "We're still kind of weighing the options. One is the Ack Ack at Churchill."\nMorse said later in the year, the $200,000 Distance Championship at Zia Park would be a possible target for Jonesboro. It will be run at a mile and an eighth, the same trip over which the horse won the Cornhusker. The Distance Championship is to be run Dec. 6. \nNo Breeders' Cup for Sing Baby Sing \nSing Baby Sing worked a bullet half-mile at Remington Park on Saturday morning, but not in preparation for the $2 million Breeders' Cup Sprint. The horse had been under consideration for the race earlier this year, but will not go, said his trainer, Jack Bruner. \nSing Baby Sing last raced on Oct. 9, finishing a closing fourth in the Grade 3 Phoenix at Keeneland. He had won the race a year ago, one start before finishing a troubled sixth to Midnight Lute in the Breeders' Cup Sprint. \nSaturday, Sing Baby Sing breezed in 47.19 seconds, the fastest of 40 works at the distance at Remington. \n"I'm not really 100 percent sure what we're going to do next," said Bruner, who trains Sing Baby Sing for Tom Durant. "We're looking at options, and we'll see what happens."\nSing Baby Sing earned a Beyer Figure of 99 for his effort in this year's Phoenix. Earlier in the Remington meet, he was second by a half-length in the $200,000 Remington Park Sprint Championship. \nNew Mexico Cup next for Glory Be Mine \nGlory Be Mine established herself as a strong favorite for next month's $140,000 New Mexico Cup Juvenile Fillies with her win last weekend in the $60,000 Permian Basin at Zia. She faced open company for the first time in the six-furlong race, and won by more than two lengths while covering the distance in a sharp 1:10.20. The win came in her first out since July. \n"She impressed me, I'll tell you that," said Todd Fincher, who trains Glory Be Mine. "She was probably a little short on training and just proved she's a racehorse."\nGlory Be Mine won her second career stakes in the Permian Basin. One start prior, she had captured the $125,000 Rio Grande Senorita at Ruidoso Downs. She races for Bobby McQueen and Dale Taylor. \nThe New Mexico Cup card of statebred stakes will be run at Zia on Nov. 8. Glory Be Mine will be shooting for her fourth straight win when she runs in the six-furlong race. Her regular rider is Martin Bourdieu.