10. Engadin Ski Marathon
The Engadin Ski Marathon is an annual cross-country ski that takes place in Graubunded, Switzerland. The second biggest of its kind in the world, a fixture on the season calendar since its creation in 1969. A freestyle race, there’s no license required to sign up, so anybody over the age of 16 is eligible.

But even this competition has been adversely impacted by the coronavirus. Organizers made the decision to cancel this year’s installment. If you think it’s not a big deal because it’s just skiing, well, you might be surprised. The tournament had registered 14,000 participants. That’s a lot of damage to the local economy.