Del Mar July 20, 2024 5:33 pm Opening day for Del Mar racing season in full swing The social event of the San Diego summer is back! NBC 7’s Derek Togerson brings us all the festivities at the racetrack. US & World Videos 1:34 Sea lion attacks swimmer at Mission Beach, San Diego lifeguards say 3:06 She died on operating table. Now, her South Bay surgeon and nurse head to prison 3:38 Desert heat can make crossing deadly for migrants in San Diego 6:08 Fallbrook company accused of keeping $11.7M owed to customers 2:45 Ramona turns out to support boy whose lemonade stand was stolen