The Man Versus Horse Marathon is an annual race between humans and horse-and-rider teams held in early June in the Welsh town of Llanwrtyd Wells. The event started in 1980 when a pub keeper overheard two men debating which was faster in a long race -- man or horse. Slightly shorter than a traditional marathon, the 22-mile course is filled with many natural obstacles, and horses win nearly every year. But in 2004, Huw Lobb made history as the first runner to win the race (in 2 hours, 5 minutes, and 19 seconds), taking the £25,000 (about $47,500) prize, which was the accumulation of 25 yearly £1,000 prizes that had not been claimed. Apparently, the horse doesn't get to keep its winnings.