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coree running through the trees
Ultra Running

Coree Woltering

Ottawa, Il

Ten seconds at a time. This was a big perspective change for me. There are certain days I counted to ten seconds at a time for an hour, there are days that I count to ten seconds for six hours. You can use this for so many things, it doesn't just apply to running, it's life.



Chicago Marathon


Signature Speedos


Ironman Championships


Longest Mile Race

Meet Coree Woltering

Coree Woltering, who’s known by some as one of the #cornfieldcowboys, was born and raised in Ottawa, Illinois. He began his running career in the 400m and 800m distances and had his sights on becoming a professional triathlete, qualifying for the Ironman World Championships twice. But before long, he discovered ultrarunning and became mesmerized by the idea of running 100 miles in the mountains.

Coree took his frontier to the next level in 2015, where he won every trail ultra-race he signed up for that year. In 2016, he averaged a 6.6-minute per mile pace to win the Tunnel Hill 50 in his home state of Illinois. At 30 years old, he continues conquering his frontier, as he set the fastest known time (FKT) in 1,200-mile Ice Age Trail in Wisconsin.

  • 2020 Ice Age Trail (FKT) 1,200-miler (21 days, 13 hours, and 35 minutes)
  • 2019 World’s Toughest Race Eco-Challenge Fiji
  • 2019 Superior Spring 50K, Champion
  • 2018 2nd place American River 50M & Quicksilver 50K
  • 2X Ironman World Championship Finisher