The Lone Star Derby is an American flat Thoroughbred horse race for three-year-olds held annually at Lone Star Park in Grand Prairie, Texas. It is currently an Ungraded stakes race run over a distance of 8.5 furlongs on turf. Inaugurated in 1997 as an ungraded stakes race, it was elevated to Grade III status in 2002. The race was downgraded by the American Graded Stakes Committee (AGSC) and lost its graded status in 2011. Lone Star Park officials moved the race from dirt to turf for the first time after the AGSC decision and moved it to Lone Star Park's special Memorial Day program dubbed Lone Star Million Day. For the three years from 2001 through 2003, it was raced at miles. Records Speed record: 1:40.88 - Anet (1997) Largest margin of victory: lengths - Wanna Runner (2006) Most wins by a jockey (tie): 2 - Jon Court (2001, 2005) 2 - Victor Espinoza (2006, 2009) Most wins by a trainer: 4 - Bob Baffert (1997, 2006, 2009, 2010) Most wins by an owner: As of 2007, no owner has won this race more than once. Purses As of 2010, the purse was lowered to $200,000. It was set at $400,000 for 2008 & 2009. Winners of the Lone Star Derby Notes References May 13, 2006 NTRA article on the Lone Star Derby Lone Star Derby list of winners at the Lone star Park website 1997 establishments in Texas Horse races in Texas Lone Star Park Flat horse races for three-year-olds Graded stakes races in the United States Recurring sporting events established in 1997 Sports in the Dallas–Fort Worth metroplex