Hello. I imported an ultramarathon with a length of 105.85 km (Javornícka 100-ka) with an elevation of 3303 m. I set my goal 18:00:00, but the prediction tells me that I will run it with my fitness in 8:08:26h. Which is totally unrealistic.
(my vo2max is 53) and I run 10k in 44 minutes. This is a pure fail