I Did a Brutal 320-Mile Race in the Arctic

We attempted the 515-kilometer Lapland Arctic Ultra across the Swedish Arctic, pulling a heavy sled through snow, ice and freezing temperatures while navigating between checkpoints. We dealt with blisters, worsening shin pain, exhaustion, sleep deprivation, extreme cold and a broken sled, while fellow competitors dropped out. After repeatedly considering quitting, we rested at a checkpoint and continued pushing toward the finish despite the increasingly difficult conditions.