A tough mudder for dogs is coming this weekend, and it's going to be just as cute as it sounds – The Denver Post
Tough Mudder Poconos, Pocono Raceway
Dixie State to kick off D-Week with new event Monday night – Cedar City News
OK runners, a competition that will make you cry, News
Extreme race brings out competitors ready for tough challenge — PHOTOS
B Magazine: BioKyowa employees face fears in Tough Mudder competition (7/14/23)