Aug. 1, 1945: Open racing resumed in place of the war-time restricted, or zoned, system in England.
Aug. 2, 1864: America's oldest Thoroughbred racetrack, Saratoga Racecourse, opened its inaugural meet with four days of racing. Since then it has been the site of some of racing's most famous upsets. Man o' War suffered his only loss in 21 starts while racing at Saratoga, and Triple Crown champion Gallant Fox was defeated by a 100-1 shot named Jim Dandy in Saratoga's 1930 Travers, prompting the track to be called "the graveyard of favorites."
Aug. 2, 1969: Jockey Robyn Smith, one of the first female jockeys in the U.S., won her first career race, at Ferndale.
Aug. 3, 1971: The yearling Secretariat was shod on his front feet for the first time and transferred to the Meadow training center for breaking.
Aug. 3, 1989: Jockey Jorge Velasquez notched his 6,000th career victory aboard three-year-old filly Maddie Bumpo in the third race at Arlington International Racecourse.
Aug. 3, 2000: Fred. W. Hooper, who won the 1945 Kentucky Derby with the first horse he ever owned and went on to develop one of Florida's leading racing and breeding operations, died in his sleep in Miami, at the age of 102.
Aug. 4, 1973: In his first race against older horses, 1-10 favorite Secretariat was defeated in the Whitney Stakes at Saratoga by Allen Jerkens' four-year-old trainee Onion, who beat him by a length. Secretariat was subsequently found to be suffering from a virus.
Aug. 5, 1988: Trainer Dale Baird won his 5,000th career race with Stuffed Johnnie at Mountaineer Park, becoming the second trainer in history, behind Jack Van Berg, to reach that mark.
Aug. 6, 1951: The National Museum of Racing opened in Congress Park at Saratoga Springs, N.Y. More than 2,000 people attended the opening ceremonies presided over by C.V. Whitney.
Aug. 6, 2001: Jockey Earlie Fires; trainers Richard Mandella and Tom Smith; horse of yesteryear, Maskette; contemporary female horse, Paseana; and contemporary male horse, Holy Bull were inducted into Thoroughbred racing's Hall of Fame in Saratoga Springs, N.Y.
Aug. 7, 1900: Trainer "Sunny Jim" Fitzsimmons had his first stakes winner, Agnes D., at Brighton Beach.
Aug. 7, 1988: Jockey Eddie Delahoussaye won his 4,000th race aboard a two-year-old filly named Fawn and Hahn in the fourth race at Del Mar.
Aug. 8, 1970: Jockey Bill Shoemaker won his 6,000th career victory, aboard Shining Count at Del Mar.
Aug. 8, 1987: Kent Desormeaux set the record for most number of stakes wins by an apprentice jockey, 13, aboard King's Snow in the Primer Stakes at Pimlico. The previous record, 10, was held by Steve Cauthen.
August 9, 1999: Trainer, D. Wayne Lukas; jockey Russell Baze, and horses Miesque, Exceller and Gun Bow were inducted into the National Museum of Racing and Hall of Fame in Saratoga Springs, N.Y.
Aug. 10, 1868: "The Dinner Party Stakes," devised by a group of seven influential Thoroughbred owners after a dinner at Saratoga a few days before, was advertised with a request for nominations. The stakes race, designed to showcase racing in Baltimore, was to be run two years hence, in 1870, at the yet-to-be-built Pimlico Racecourse.
Aug. 10, 1982: Mary Russ became the first female rider to surpass the $1 million mark in earnings when she finished third aboard Bammer in the fourth race at Saratoga Racecourse.
Aug. 10, 1996: Cigar was denied a 17th straight victory when longshot Dare and Go passed him in the stretch of the Pacific Classic at Del Mar.
Aug. 11, 1972: In preparation for his stakes-racing debut, the Aug. 16 Sanford at Saratoga Racecourse, Secretariat worked five furlongs in :59.
Aug. 12, 1943: Representatives of Suffolk Downs donated $625,000 to the National War Fund, the single largest contribution by any sports venue in support of the war effort. Six weeks later, an additional $10,885 was contributed. The track had held an 18-day War Charity meet to fund the donation.
Aug. 12, 1938: In a $25,000 winner-take-all match race, Seabiscuit defeated Ligaroti by a nose at Del Mar. The race pitted father against son, with Charles S. Howard, owner of Seabiscuit, competing with his son Lin, who owned Ligaroti in partnership with crooner Bing Crosby. The race was so closely contested that the jockey for Ligaroti, Noel Richardson, kept rider George Woolf in a leg-lock for part of the stretch run.
Aug. 12, 2000: Hallowed Dreams, bidding to surpass the record of 16 consecutive wins she co-owned with Cigar and Citation, finished third in the Millennium Stakes at Evangeline Downs.
Aug. 13, 1919: Upset scored a win against Man o' War in the Sanford Memorial Stakes at Saratoga Racecourse. The defeat was Big Red's only loss in 21 starts.
Aug. 13, 1938: Mary Hirsch became the first woman to train a Travers Stakes winner when she sent Thanksgiving to victory for owner Anne Corning.
Aug. 13, 1951: At odds of 2-1, Greentree Stable's Tom Fool won his maiden race by four lengths at Saratoga Racecourse.
Aug. 14, 1942: One of racing's oddities occurred at Saratoga Racecourse when Rurales and Joe Burger finished in a dead-heat for first place, giving trainer W.O. Hicks, who saddled both horses, two winners in one race.