The Laurel Turf Cup became a misnomer, but Chas' Whim strode as true as ever yesterday. He proved the lack of turf beneath his feet a superficial matter, running away from Learned Jake and nine others to win the $100,000 handicap on the Laurel dirt.

The Turf Cup had been displaced Saturday after the grass course absorbed about 1 1/2 inches of rain. While the dirt track dried yesterday, a pool rose -- the double-triple jackpot reached $103,030.

In the switch to dirt, the Turf Cup was shortened two furlongs to 1 1/4 miles, of no particular benefit to the front-running Chas' Whim. He was pulling away from Learned Jake when he passed the wire, the four-length victory his eighth this year. Learned Jake overcame heavy traffic before the clubhouse turn but never got within a length of Chas' Whim, who carried six pounds more as co-highweight and finished in 2:03.

"It was real bad," said Mark Johnston, who rode Learned Jake. "Even with the long run into the turn, everybody was coming over so quick. My horse was real rank today. . . . my arms are tired from fighting him. I wanted to be close {to the lead} just knowing that nobody would be close to Chas' Whim, but I couldn't get there."

While Learned Jake easily held second at the wire, Rebuff went charging past horses for third. Rebuff, who had only one dirt race the past year, gave value to a $220.50 triple as the field's highest price, 64-1. Chas' Whim, in his first stakes victory over older horses, was the 6-5 favorite, Learned Jake, 2-1.

Ridden by Allen Stacy, Chas' Whim increased his winnings to $237,996 for Elmer and Harriet Heubeck, who bred the horse in Florida. Trainer Rodger Gill said he plans to race the 3-year-old at Laurel again before year's end.

Although 432 live tickets existed after the third race -- first half of the double -- none was exchanged for the 4-5-10 fifth-race combination. The double-triple was last hit Oct. 28.

Steward John Heisler said the stewards might look into the third race, in which apprentice jockey Patricia Eldridge appeared to stand before the wire as her mount, April Rickles, lost third-place by a half-length. According to Clerk of Scales Tommy Lee, Eldridge had won 17 races; it was her first ride in Maryland.

Heisler said the stewards probably would not examine an incident in the seventh race in which Mario Pino restrained Big A. J. throughout en route to a last-place finish. Big A. J., the program favorite, went off at 6-1 with $6,173 behind him in win, place and show wagers and thousands more in exacta and triple combinations.

"He was crippled," Pino said. "I was warming him up {vigorously before the race}, but he never warmed up out of it. He was sore. . . . He wasn't extending himself. I knew he wasn't going to come out of it. There was nothing I could do."

David Zipf, a state veterinarian, said that Pino told him Big A. J. "felt a little funny" during the warmup. Zipf watched the horse jog away and later said, "He could have been a little off in behind, but he galloped out okay."

According to Zipf, Big A. J. had been withdrawn from a race 10 days earlier after reportedly injuring a hind ankle in the shedrow.

Big A. J. did not gallop out as far as his rivals after crossing the wire. State veterinarian Pat Brackett said the horse "looked okay coming back."

The race was won by Restless B. J., an unraced 2-year-old who opened as the favorite despite having no published workouts.'Wolf' to Corbett Farm

Recently retired Northern Wolf will stand at Lehr Jackson's Corbett Farm in Baltimore County beginning next year. Jackson bought a quarter interest in Northern Wolf and said the horse would be syndicated at a price to be determined.

Northern Wolf set six-furlong records at Laurel and Pimlico this year before retiring suddenly with a sesamoid injury last month. The problem was diagnosed after the colt worked five furlongs in :56 3/5, faster than the Belmont Park track record.