Can you run ultramarathons in Vibram FiveFingers? (Vibram FiveFingers Reviews)

The quick answer is YES. If you've transitioned to minimal running and trained on similar surfaces, you should have no trouble running ultras in Vibrams. Ultras I've run: Hawkeye 50k Booneville Backroads Ultra 100k & 100 Mile Heartland 100 Mile Pleasant Creek Trail Run 45k Painful Elimination 12 Hour run Sanders Saunter 50k Kansas Rails to Trails Extravaganza 100 Mile Prairie Spirit Trail 50k #vibram #vibramfivefingers #ultramarathon