World's Toughest Mudder competitors took the course at Bouckaert Farms in Atlanta, GA this weekend. Read more for results and updates from the course!

Which sport has the tougher athletes: OCR or Crossfit? Spartan set out to get an answer at this year's world championships in Lake Tahoe.

The results are in from this weekend's Spartan World Championships in Lake Tahoe.

Monday early morning in Moscow, Russia, athletes from the Americas, Asia, the Pacific, and Europe celebrated their performances after the Ninja OCR World Championships. 2,000 competitors raced head to head over a spectacular and challenging 160 m course, flanked by thousands of spectators following the athletes.

In a post to the World's Toughest Mudder Community, Tough Mudder released an update announcing changes coming to this year's race, which will take place on November 16, 2019, in Atlanta Georgia.

The inaugural Spartan Trail Season comes to a grand finale December 15, 2019 when the sport’s best athletes descend on Los Olivos, CA for the “Spartan Trail US Championship Presented by Altra.” A $50,000 prize purse is on the line for the top 10 elite male and female competitors in the 10k and 21k races, which is the largest purse ever offered in trail running history for the two distances.

As the sport of obstacle course racing continues to mature, we'll see more events changing hands or vacating the space altogether, merging with other events, and new variations of the sport pop-up. The core of the sport will always be the participants, and as long as there are events being offered that excite and challenge participants we're sure to see the sport continue to exist and even grow in new avenues.

Spartan announces the new "Spartan Viber Global Community" as part of the 2019 Spartan World Championships through their partner Rakuten Viber. Through the app, users can unlock Q&As, training plans, nutritional tips and more from the top pros and minds in the sport of OCR.