You bloody lunatic why would you go and do something like that, did you leave your last therapist crying or something
You're also probably thinking of
@Ascender on here, who has competed in, and organised long-distance events.
There is a running thread already in existence
here which I started last year when I was considering the Thames path 100km, after seeing
Mark Lewis on YouTube do it (he's worth a sub, very funny channel about fitness. I kept getting a repetitive injury once my runs got over an hour and it turns out I've got a hernia which will be the reason why! Hence moving over to triathlon where I can cycle/swim to reduce the stress on my groin until the NHS finally get around to operating (likely to be around 6-9 months).
Have you got an event in mind? What are the mult-discipline events you've been doing too?