Thing to do in San Diego July 18 Sept 7th 2025 Opening day at Del Mar Racing Friday, July 18th 2:00pm Open: Thursday Sunday Tickets: GA $11 and up TURF CLUB FRIDAYS *Dress Code inforced in Turf The sartorial scene at Del Mar Race Track. The Del Mar Race Track: How to Dress for the Horse Races eWebtrends Links Honest truths about the Del Mar Racetrack @delmarracing Follow @internaldandelion for more San Diego activities! 1. Dressing up is a must. Like, more than you think. People show up in when is opening day at the Del Mar Racetrack? Can I wear jeans?