I recently ran san Diego rock and roll marathon on Sunday . Training was good, injury free. I followed Hal higdon intermediate advanced plan. Set out at a 6:52 pace to run a 3:00 marathon. I found a group and we were spot on every split until mile 16. Everyone's been there. The group slowly drifted away and I mumbled every curse word I knew under my breath. There was no more speed left in my legs. Im 30 y/old and this was my 11th marathon. I should know what I'm doing out the by now, guess not . PR: Boston 2011 3:09:20 .
Anyone been through this? How do you break through a speed block? Training tips? Articles to read? Do i need more track workouts? I'm vegan, is that why I blew up? I don't know what to do to keep pace, a coach maybe?