Tunnel Hill 100 2021 ByOneBiteAtATime Ultra Forum hasn't gotten a lot of use lately. Last weekend, I did the Tunnel Hill 100 in Vienna IL. Its a rail trail with not a lot of elevation - people break the world record on this course. I saw it as my chance to try to go under 24 hours for the first time and I was able to do so - 23:23! First 50 I ran in Xero Ztreks and socks, but the crushed limestone kept getting under my feet so I made the decision to switch to a road shoe (Altra Solstice) for the second half. Cold and pretty, beautiful night - headlamp not all that necessary except to let other runners know you were there. I experienced sleepiness for the first time in an ultra - never had a problem with that before. But the short and long of it is I got it done and I'm proud to knock one out in less than 24 hours. Good starter hundred or fifty if someone wanted to try it out.