I sometimes wonder if when it comes to running ignorance may well have been bliss.
In the end I completed the Rio marathon in 3 hours 18 minutes and I’ve subsequently found out it’s a pretty good time for a first marathon for someone the wrong side of 40. But I think I was able to achieve this because I was ignorant. In the last two miles when my body was aching I had no idea if I was making a good time or not, I just knew I had to push my body as hard as it could go.
Run! Don't Think!!
(The picture today is of a kid I saw running as fast as he could on a beach in Brazil - I doubt he was suffering from the Bannister Effect)