I've been dot watching today following an old friend from Llanidloes, Lenny Hughes.

I'm new to this dot watching and would like a couple of things, which are probably obvious but I can't work out, explained.

Firstly the time in the top right corner. I am assuming that the clock started at midnight but the majority of runners have taken around 12 to 13 hours to get to Ogwen! Am I right in thinking they actually started at a more sociable time this morning?

Secondly the "live" feed in the bottom left sees runners going through the arch in in both directions. Again I assume it is a checkpoint presumably at Ogwen due to the tarmac.