Multi, that's great to hear!
Funnily enough we chatted to an elderly (70+) runner as we were warming up, so looking at the results there is a 1 in 3 chance he was your dad.
Will look out and try and reduce the odds to 100% on my next Marple visit.
Just a thought - He's unlikely to be at the Junior Parkrun tomorrow is he?
(My girl have just voted for a Sunday lie in, anyway).