The Cirque Series is redefining what mountain running is all about! Starting from the base of Alyeska ski resort, you’ll rally up windswept ridges and glacial cirques to towering peaks, power down a quad-burning descent, and break the tape into a festival of live music, food, drink, and vendor tents. A rowdy loop of mountain running, the elevation is serious but the mileage is manageable, and the race is as hardcore as you want it to be--beat the pros down to earn legend status and cash prizes, or enjoy the views and let the challenge be its own reward. $49 registration. AlyeskaResort.com.