and Wenduyne, the winners of the 1000 Guineas and the Irish 1000 Guineas respectively. After being restrained towards the rear in the early stages she produced a sustained run on the outside in the last quarter-mile, overtook the front-running Frontier Goddess inside the final 100 yards and won by three-quarters of a length with Myastrid four lengths back in third place. At Royal Ascot later that month, with Gorton again in the saddle, she was made the 7/4 favourite for the Ribblesdale Stakes and came home five lengths clear of her opponents. Shortly after her win at Ascot Sleeping Partner contracted a respiratory infection which interrupted her season. She ran twomore races that year without recapturing her best form, finishing third behind Frontier Goddess and Wenduyne in the Yorkshire Oaks in August and fourth to Aggravate in the Park Hill Stakes in September. 1970: four-year-old season Sleeping Partner was unplaced on her only start of 1970 and was retired from racing. Breeding record At the end of her racing career Sleeping Partner was retired to become a broodmare at her owner's stud but proved to be barren and produced no known foals. Assessment and honours In their book, A Century of Champions, based on the Timeform rating system, John Randall and Tony Morris rated Sleeping Partner an "inferior" winner of the Oaks. Pedigree References 1966 racehorse births Racehorses bred in the United Kingdom Racehorses trained in the United Kingdom Thoroughbred family 16-b Epsom Oaks winners