The 2025 World Athletics Road Running Championships take place in San Diego and will be a celebration of everything that's great about the sport. Imagine the work that goes on to create a weekend for 50,000 runners! We'll take you on that journey with the CEO of San Diego 25, Tracy Sundlun. There isn't anyone better suited to this huge task and he'll share it with us in this fascinating series. Tracy gives us the background to the event in this first episode.