Age Categories 1/2 milers (ages 5 and under) and are first.  These kids will not wear an ankle chip. 6 to 9 year olds run 1 mile and start after 1/2 milers finish. This is the biggest group to run so they are usually broken into two groups.  Just listen to the DJ for your age group to be called. 2 milers (10-14) will be last. You may run out of your age group but you then will not be eligible for a 1rst, 2nd, 3rd, 4th or 5th place medal. For example, if you are a 2 miler but only want to do a 1 mile race, you may, but you will forfeit the custom place medal if you happen to come in first, second or third. UPDATE! Age Calculation Date The date of the first race. Your child's age on this date will be the age category he/she will start the first race in and will be in for all 5 races. Your child will not change age categories, even if he/she has a birthday. For example, if your child is 9 in November, the new age calculation date would have him running with the 9 year olds even in the January, February and March races.  He would not move up to the 10 year old 2 mile race even after his birthday.