Madeleine Paulson's Oaklawn Handicap (gr. I) winner K One King zipped four furlongs in :47 2/5 at Churchill Downs on Tuesday in his final preparation for Saturday's $750,000-added Stephen Foster Handicap (gr. II). With exercise rider Kenny Martin aboard, K One King's time was the fastest of 27 at the distance.Although trainer Akiko Gothard had said before the work she wanted an "easy half-mile" from the 4-year-old son of Apalachee, she was not disappointed by the fast time. "I'm very happy with it," said Gothard. "He did it very easy, that's the main thing."Stronach Stable's Golden Missile jogged over the Churchill Downs track Tuesday, one day after arriving from New York. Juddmonte Farm's Chester House was scheduled to arrive at Churchill Downs late Tuesday afternoon. The Bobby Frankel-trained son of Mr. Prospector was being flown from New York to Lexington and will travel by van to Louisville.Meanwhile, trainer Rick Hiles said B M H Stable's Midway Magistrate would not contest the Stephen Foster. Hiles said the Prairie Meadows Cornhusker (gr. III) may be the former claimer's next start.On Monday, Overbrook Farm's Breeders' Cup Classic (gr. I) winner Cat Thief worked a sharp five furlongs in 1:00 3/5 at Churchill Downs in preparation for the Stephen Foster. Exercise rider Stacy Maker was aboard the D. Wayne Lukas-trained 4-year-old for the work, the co-second fastest of 20 at the distance.Also working Monday was Stephen Foster candidate Unloosened. Owned by Carol Hebel and Loren Hebel-Osborne, the 4-year-old son of Unbridled breezed five furlongs in 1:03 3/5 for trainer Steve Penrod.The probable field for the 1 1/8-mile Stephen Foster, which will be televised live on ESPN2 as part of that network's "2Day at the Races" from 4:00-4:30 p.m. ET, (with owner/trainer/jockey) includes: Golden Missile (Stronach Stable/Joe Orseno/Kent Desormeaux); Cat Thief (Overbrook Farm/D. Wayne Lukas/Shane Sellers); Chester House (Juddmonte Farm/Bobby Frankel/Alex Solis); Classic Cat (Gary Garber/Bob Baffert/no rider); Ecton Park (Mark Stanley/Elliott Walden/Pat Day); K One King (Allen and Madeleine Paulson/Akiko Gothard/Mike Smith); and Aly's Alley (Eaglestone Farm/John Tammaro/no rider).Listed as "possible" for the 1 1/8-mile race are Nite Dreamer (Henry Pabst/Niall O‚Callaghan/no rider); and Unloosened (Carol Hebel & Loren Hebel-Osborne/Steve Penrod/no rider). Nite Dreamer was the runner-up to Victory Gallop in the 1999 Stephen Foster.