Mr. Light, a world-record-setting miler at Gulfstream Park this year, has been purchased by Mill Ridge Farm from Earle I. Mack for stallion duty. A 6-year-old son of Numerous, Mr. Light has been retired from racing and will enter stud at Mill Ridge near Lexington. The farm is owned by Alice Chandler and her husband, Dr. John Chandler.Mr. Light set a world-record mark of 1:31.41 for a mile on turf in winning an allowance race at Gulfstream Park. After that came mile wins in the Poker Handicap (gr. IIIT) in 1:32.18 at Belmont Park and the Appleton Handicap (gr. IIIT) in 1:32.98 at Gulfstream, plus a fourth-place finish in the Maker's Mark Mile Stakes (gr. IIT) at Keeneland in his other start this year."We all know milers have historically made good sires, and here is one with world-record speed bred on a cross that has already worked extremely well," said Bayne Welker Jr., Mill Ridge director of stallion marketing. "Mr. Light's trainer, Angel Penna Jr., has nothing but praise for this horse, and he was one of the attributing factors that led us to make the decision to stand him."Bred in Argentina by Firmamento, Mr. Light was group II stakes-placed in Argentina. He retired with six wins and five placings from 16 starts and earnings of $247,059. He is a full brother to Argentine champion and North American grade I winner Miss Loren, and a half-brother to group II winner Milano Phone.Mr. Light, who was produced from the Forlitano mare Luminare, will stand for $6,500 live foal. Mack will retain a breeding interest in Mr. Light.