I find the long runs at easy pace are fine and intervals are fine but I really struggle keepng a faster pace (tempo)when I'm on my own. In the half marathon plan I have to do one of these a week, running for 45 minutes tempo then building it up to 50 minutes tempo and then 60 minutes tempo.
I'm not sure how I'm going to achieve this! I was thinking maybe doing parkruns, but this is only 5k and so won't be long enough. Any help would be hugely appreciated!