VUMC is a sponsor for the Music City Grand Prix and with that sponsorship Medical Center employees receive a discount code for single-day tickets to the events.
This includes any day, grandstand or general admission tickets, but will not apply to three-day tickets. The promo code is VUMC and will be active through the race weekend, Aug. 5-7.
Below is a direct link to the event page on TicketMaster that will show all of the single day options. The link also includes an option to buy tickets for the Aug. 6 Tim McGraw concert, but the VUMC discount does not apply to the concert. However, a single-day Saturday ticket has access to all concerts on that day, including Tim McGraw.
Here is the link: https://www.ticketmaster.com/big-machine-music-city-grand-prix-tickets/artist/2766549