As far as King Leatherbury is concerned, the magic number is one.
With Leatherbury's countdown toward training 5,000 winners reaching a crescendo, a discrepancy arose yesterday after one of his horses, Lost Island, scored as the 8-5 favorite under apprentice Austreberto Salazar, in the second race.
Official Daily Racing Form records did not conform with the figures of Leatherbury, who has himself at 4,999 entering today's card.
"According to my records, I'm one off," said Leatherbury.
The problem arose when the Form did a "re-calculation" of Leatherbury's career total after receiving race-by-race charts 11 from Pimlico, according to the Form's statistical supervisor Jennie Parks.
The new numbers from "the more detailed check" gave the trainer one more victory this year, 59 instead of 58.
His other runners almost made the difference academic yesterday, but two (Friendly Paces in the first and Fayzie Wayzie in the fourth) finished second and Best Lord was third in the seventh race.
The breakthrough on everybody's charts may come today when Leatherbury, often referred to as "the king of the claimers" in Maryland, saddles four horses.
Salazar and Leatherbury's regular rider, Mark Johns- ton, will share duty on the four, Daves Runner (fourth), Blue Highways (sixth), Ask Questions (seventh) and Oops I Am (eighth).
Leatherbury's first winner was 34 years ago at Sunshine Park in the Tampa Bay, Fla., area.
At age 60, he will join only two other trainers in the 5,000-win circle, Dale Baird and Jack Van Berg. Baird, who operates at Mountaineer Park in West Virginia, has 6,199. Van Berg, based in California, is at 5,777.
A native of Maryland, Leatherbury has collected more than 30 trainer titles at Pimlico and Laurel and has twice (1977 and 1978) led the nation in wins.
* Goldminer's Dream set a track record of 56 4/5 seconds for five furlongs on the dirt in winning yesterday's $20,500 allowance feature.
The race was scheduled for turf, but was shifted because of the rainy conditions yesterday morning.
Trained by Vinnie Blengs and ridden by Edgar Prado, Goldminer's Dream sat just off a blistering pace (21 1/4 at quarter) set by 3-5 favorite Wild Zone.
They came into the stretch head-to-head before Goldminer's Dream pulled away to win by a half-length.
The performance at the seldom-run distance on the main track broke the record of 57 seconds set by Tyrant on May 22, 1971.
A 4-year-old son of Crafty Prospector, Goldminer's Dream has four victories in seven career starts.