
I ran a 50 mile ultra in sandals and it went fine
This post might get downvoted because it sounds really stupid. 😅 I hope it doesn't, though, because I think it went fine and there are good reasons why it's ok.
EDIT: this post got more attention that I thought it would, and people are asking why anybody would do this. Here is the reason: When I first started running casually many years ago, never with the intention to do ultras, I ran in these exact pair of sandals. I actually kept on replacing them after they wore out -- the sandals in the photo are my third pair. What I did not expect is that my entire skeletal-muscular system would adapt to these sandals. With that said, and needless to say, my feet and shins are super comfy in them.
At some point, I began taking running a little more seriously. I got expensive running shoes and expensive orthotics. The arch on the shoes is in the exact right spot so that I run with near perfect pronation. I actually brought those shoes to the 50 mile race but never wore them. Here's the problem: my skeletal-muscular system was so adapted to these sandals that the change in pronation actually was causing injury because changing pronation changes muscle usage profiles and where the shock is absorbed in the shin and tendons. So, for the 50 mile race, I decided to just wear the shoes that are the most familiar and comfortable for me: those sandals. But I don't intend to wear them for forever, and I will be tapering off of them and wearing my overpriced running shoes while training.
For these reasons, I think that wearing these sandals was objectively the right decision for this specific race. But I wouldn't recommend it for anybody else!
EDIT EDIT: here are the shoes: https://www.amazon.com/dp/B01IA5BPLE?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1&psc=1
EDIT EDIT EDIT: I'm hearing from several runners who are more experienced and knowledgeable than me talking about wearing sandals in ultras up to 100 miles. So far, all of them have mentioned Luna sandals.