03/13/2007 12:00AM

Etc. . . .

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Bob Bork has been elected president of the Thoroughbred Racing Associations. He is a past secretary of the organization and the current president of Sam Houston Race Park in Houston. . . . Thomas Aronson, a former racing consultant and executive with Television Games Network, has joined Churchill Downs Inc. as a senior vice president. Aronson was hired in February, and will be responsible for "new product development," according to Julie Koenig Loignon, a spokeswoman for Churchill. . . . Beginning Monday, March 26, first post time at Philadelphia Park will be 12:25 p.m. Eastern.