Trainerroad

Agreed. But I was put off by it being 11 days away. So a bit late for increasing speed. Better to get used to holding the hammer down.

Trying to increase your endurance with 11 days to go is pretty pointless, more so for a 10.

Being a 10 so you're better off getting your body used to VO2 type efforts and leaving enough time before the event to recover from them, ie. don't do them the night before.