Ready to take on a 50k Ultramarathon? This training plan is 24 weeks in length. Weekly mileage tops out at 52 miles per week. Each training week will include details regarding cross-training and recommended pace zones. You should be able to comfortably run at least 35-40 miles per week for 3 to 4 weeks in a row. Our 50k running plan starts at 30 miles in the first week and builds weekly mileage from there. NOTE: This training plan does not explicitly address course specifics. If your race ...