COVID-19 vaccine hub at Texas Motor Speedway reaches new daily record The Denton County hub administered 14,947 vaccines on Wednesday. Donna Bergman of Flower Mound receives a COVID-19 vaccintation from Penny Mayo at a drive-through vaccination clinic at Texas Motor Speedway in Fort Worth.(Vernon Bryant / Staff Photographer) A vaccination hub at Texas Motor Speedway met several milestones on Wednesday, including a new daily record that Denton County Public Health says might be a national record. The vaccination hub, in north Fort Worth, administered 14,947 vaccines, breaking its previous record of 12,927 on March 30, helping the county clear its 300,000th vaccination since launching in early February, with more than 313,000 vaccinations in total.