7 Marathons. 7 Continents.
7 Days.

The World Marathon Challenge®

The World Marathon Challenge — the original "777" — is one of the most demanding endurance events on Earth: seven full 26.2-mile marathons, on all seven continents, inside seven consecutive days. The clock starts the moment the first marathon begins in Antarctica and never stops.

Since 2015, only 292 people on the planet have finished it. In the 10th edition — January 30 to February 5, 2027 — I'm going to do everything in my power to become one of them.

• Run 42.2 km (26.2 mi) on every continent — from -15°F polar ice to 90°F tropical humidity.
• Recover on charter flights between continents: sleep, eat, and rehydrate at 35,000 feet.
• Repeat seven times in 168 hours, across a dozen time zones, with almost no real night's sleep.

Who's Crazy Enough
to Do This?

I'm Mike Sego — a marathoner, Boston Qualifier, and UESCA-trained endurance coach from the SF Bay Area. I've spent more than a decade racing, and the last several years pacing other runners to their own finish lines through SeGo The Distance, my free marathon pacing service.

Running changed my life: the discipline, the community, the proof that ordinary people can do extraordinary things. The 777 is my chance to test that belief at the absolute edge — and to put it to work for kids who haven't yet discovered what their own legs can do.