KOH
There are always debates about which race is the toughest. You have your Baja guys saying they go 1,000 miles non-stop through desperate terrain down in Mexico. You have your Dakar guys saying their race lasts a week and covers 5,000 miles. There’s probably even some guy who says he suffered at the Goodwood Fesitval of Speed because his champagne went flat before the final serving of the epicurean luncheon buffet. They all have good points (and we’ve been to Goodwood, so we know). But you could make a terrific argument that no one suffers more than those who run the King of the Hammers.