https://kids.guinnessworldrecords.com en

Most participants in a Furnace Creek 508

Most participants in a Furnace Creek 508
Who
2011 Furnace Creek 508
Where
United States
When
10 October 2011
The most participants in a Furnace Creek 508 race is 217, who took part in the race in California, USA on October 8–10, 2011. The Furnace Creek 508 is widely regarded as the world’s toughest ultracycling event, and takes place over 508 miles between Santa Clarita, across the Mojave Desert, through Death Valley, to Twentynine Palms.