There are two distinct "Everest" races:

1. The Everest Marathon is held annually in the Solukhumbu district of Nepal, around Mount Everest. The race starts at Everest Base Camp and ends in Namche Bazaar in the Khumbu region. It is a high-altitude trail marathon, typically held in May, including categories like full marathon, ultramarathon, and half-marathon.

2. The Everest horse race is a Group 1 thoroughbred horse race held at the Royal Randwick Racecourse in Sydney, Australia. This race is known as the richest turf race in the world and is held annually in October as part of the Sydney Spring Racing Carnival.

So, depending on which "Everest race" you mean:

• The Everest Marathon is held in the Everest region of Nepal.
• The Everest horse race is held at Randwick Racecourse, Sydney, Australia.