The Old Dominion 100, established in 1979, was held in Virginia along the beautiful Shenandoah River. It was one of the first classic modern-era American trail 100-milers. Today, few ultrarunners have even heard about this race.

Old Dominion 100’s origin story is similar to Western States 100. It also emerged from the horse endurance riding sport. The Old Dominion 100-mile Run patterned its practices from Western States, established two years earlier in 1977. Old Dominion 100 gave East Coast ultrarunners a trail 100-miler on their side of the country.

Western States 100 claims it is the “world's oldest 100-mile trail race” (still being held), but technically Old Dominion 100 has legitimate rights to that claim because in those early years Western States was actually only 89 miles.