New to the forum, but running the Vitality Half in March, and the London Marathon in April.
Managed a 1:54:03 half last sunday, with a 5k PB of 23:35 (still slow!).

Aim for the marathon is sub 4hrs, but I'm really struggling to increase overall pace in my training runs.

Any suggestions? Hills?

Some great running by all on the Strava group - well done all round!