 On October 9, 2008 at Louisiana Downs in Bossier City, Louisiana, Pat Valenzuela rode his 4,000th winner.On July 22, 2010, the CHRB Stewards granted Patrick Valenzuela another conditional thoroughbred license, whose conditions include thrice weekly AA meetings, submission to random and for cause drug tests, and must completely abstain from the possession, injection or consumption of all mood-altering drugs, including alcohol.Tom Knust, Patrick's agent, has insisted that Patrick has been clean since May 2008, which was confirmed by Louisiana stewards as Valenzuela never failed a random drug test there.