How old you are on December 31, 2023 determines your age group. There are divisions for men & women ages 15-19*, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75-79, 80+, and Physically Challenged OPEN.
*Under Italian Federation Rules, only athletes 18+ will be eligible to participate in the 2023 XTERRA World Championship in Italy.