I’ve DNF’d three 100 mile runs in my Ultra career and only one of them has stuck in my craw ever since 2018: IMTUF 100. The Idaho Mountain Trail Ultra Festival is a low key, old school ultra with only 200 runners. The RD “Jer” writes, “We will tackle the same course flow and direction as in 2020-2023 on our SUPERCOURSE. This is a post-doctoral level mountain race for those who have the skillset acquired from a lifetime of rugged mountain travels. Before registering, do your research and make sure this kind of race is for you and keep training with relentless passion for a life changing experience in the Salmon River Mountains of Idaho.” The course is 100ish* miles, with estimates ranging from 96-109*, 22,000* feet of elevation gain with a 36-hour cutoff.