A Diligence filly sold for $85,000 Tuesday to top the first open session of the Ocala Breeders' Sales Company's August yearling sale. New Jersey bloodstock agent Buzz Chace purchased the Florida-bred filly for William Lickle, a prominent owner of steeplechase horses. Lickle, according to Chace, is becoming increasingly interested in flat racing."If she had more pedigree, she would be a $300,000 horse," said Chace of the muscular filly. "She is beautiful."By a first crop sire, the filly was produced from the 7-year-old Apalachee mare Indian Saint, who raced but did not win. The filly's second dam, Saintly Haint (by Boldwood), captured the restricted Ak-Sar-Ben Lassie Stakes. The OBS session topper is a half-sister to the winner Tomica (by J.R. Tobin), who finished second in the Drop Me A Note Stakes at Monmouth Park.The session's highest-priced colt was a $77,000 son of Montbrook out of the 17-year-old stakes-winning mare Little Emotion (by Nonparrell). Consigned by Sugar Hill Farm, agent for McMaster Farm, the Florida-bred yearling was purchased by Trio Loco.In all, 180 horses were sold for gross revenues of $1,966,800 and an average price of $10,927. The gross was down by 13.4% from last year's comparable session, but the average was up by 2.1%. The median price was $5,500, down by 21.4% from 2000. The buy-back rate was 30.0%, with 77 of the 257 horses offered failing to find new homes. Last year's buy-back rate was 25.3%.Through the first two days this year, 311 horses were sold for a gross of $7,740,800 and an average of 24,890. Through the same point in 2000, 406 horses were sold for a gross of $10,481,900 and an average of $25,817. Last year's figures included the annual consignment from Mockingbird Farm that grossed $3,202,500. There was no such consignment from Mockingbird this year because the farm has dispersed its horses. The OBS August yearling sale continues through Friday in Central Florida, with each session beginning at 11 a.m. (EDT). It began on Monday with a select session.