At Spartan Races we start in waves. Waves of athletes will be released e.g. every 15 to 30 minutes with 150 - 250 athletes. Number of athletes in each heat and the time between heat starts depends on race course and total number of participants. Race against the best and join the Elite Heat. This is the first heat of the day. All other heats start after that heat. Make sure you register early to be guaranteed a time slot in your preferred heat, if it does not show as available then it has sold out.