Not the best way to get your last intervals session before the first planned half marathon. Should have been 4x800m alternating between hr zone 2 and zone 3. After the first rep, that dreaded feeling came, you know the one 💩😩 so had to walk a good mile and half back home. Undeterred off I go again to finish what I’d started #running #halfmarathontraining #coros #runnersofmastodon