I hope I don't sound like I'm boasting because I'm really not - BUT - Garmin says 10.13K in 1:00:55....!!! Actual 10k is around 60:10 - over 1min off my PB. I was hoping to get round in 1:02/03.
I knew the first 1K would be slow and it was, but I can hardly believe the time! Didn't feel especially tough and even tried to speed up for the final 1k or so which makes it even more unreal.
Can't deny, I'm absolutely thrilled.
Garmin stats here: