- Ironman: 30 Events, 65,000 entrants, average 2,167 per event
- Ironman 70.3: 62 Events, 95,000 Entrants, average 1,532 per event
- 5150 Olympic/International Distance: 18 Events, 15,000 Entrants, average 833 per event
The actual number of registered entrants varies widely, from more than 3,000 at Ironman Canada and 5150 St. Anthony's to a low of 219 at Ironman 70.3 Sri Lanka. Chart data is sorted in approximate calendar order.
What do 110 races with 175,000 entrants look like on a single page? It's a bit overwhelming, when you think about WTC managing each race individually, as location, participants, rules, schedules, dates, volunteers, website, results and more tende to vary from event to event.