It's no surprise 10K runs are the most popular race distance. At 6.2 miles, it's an achievable challenge for beginners. Between a 5K and the half marathon, a 10K distance accommodates recreational runners as well as serious competitors alike. Great for building speed, strength and for more experienced runners to increase their endurance while training for longer distances. It’s not just the race that’s all-round either, 10K training fits in with more running goals than any other distance.