Endurance races are long-distance competitions that test participants' physical and mental stamina. These events can include activities like running, cycling, swimming, or a combination of these, often spanning several hours to days. Common formats include marathons, ultramarathons, and triathlons, where athletes push their limits over challenging terrains and conditions. Participants in endurance races typically train for months to build their strength and endurance. Nutrition, hydration, and pacing strategies are crucial for success, as athletes must manage their energy levels throughout the race. Events like the Ironman and Western States Endurance Run are popular examples of endurance races that attract competitors from around the world.