KINGSPORT — If you haven’t purchased your tickets to the Racks by the Tracks festival, it’s not too late to do so. The festival, which will be held Saturday at the Kingsport Farmers Market, is on track to bring in around 15,000 attendees again this year, and tickets are still available for every event. “Racks by the Tracks is a day for families and friends to get together and to run into old friends, while enjoying great barbecue, craft beer, wine and music,” said Kanishka Biddanda, festival founder.