lalonauta wrote:
Since you're not getting very serious replies.
I'm shooting for sub 3 in Boston in a few weeks. I have been averaging about 60mpw, have done 6x20 milers alternating between slow and steady at 7:20, or doing fast finish with last 5 miles around 6:25. MAF all day pace is around 7:30.
PR is 3:03 when doing about 50mpw and really struggled on the last 3 miles.
Since I was attempting to provide some serious replies I'll add here that I, too, am going for a sub-3 at Boston in a few weeks.
My PR is 2:59 and I ran that off a season of Ironman training 15+ hours a week but only 40-50 miles a week of running near the end for the marathon specific build. My long runs were all done either "just long" (20-22 miles) at 6:55-7:05 pace, and some that weren't as long (16-18 miles) but were done as semi-tempo runs where the main portion of the run was done at 7:20ish or so, but with stuff like 3x20:00 tempos at 6:15-6:30 pace.
The last time I ran Boston I was going for a sub-3 (this was before I set the 2:59 PR) and at the time my PR was 3:04. I was totally on pace for the sub-3 until I saw the sign that says "Welcome to Newton" and everything went to hell. Finished at 3:10. Boo. Turns out running for 16 miles slightly downhill destroys your ability to absorb the 4 hills in Newton, which in turn wreck you for the last 5 miles of downhill running into Boston.