Easy Peasy wrote:
800 dude wrote:
As for whether it's worked for me, that's always a bit of guesswork. I'm at the stage in my running where I'm only interested in swinging for the fences, and I've PRed in about half of my marathons. In the marathons where I didn't run well, usually I made poor decisions in the race (didn't adjust pace for bad weather, or decided to try and hang with a group of pro women who were frankly a level above me).
I've also never arbitrarily picked an MP pace. It's always been my current PR, and if I better that in the race, it's been with a negative split.
I'm genuinely curious at this approach you take. For the times you've actually nailed the workout, 20@MP, how many times have you hit that MP in race? And then the opposite: for all the times you've failed, how often have you nailed the pace in the race.
I've attempted a full 20 at MP four times in training. I nailed it all four times, and it felt fine. Two of the following races were big PRs, and two were mediocre.
And I know I've said this before, but I'm just going to keep repeating it: I'm not saying this is the only way to go, and I actually don't do long runs that are quite that hard anymore. I think there was a sweet spot in my early 30s when I had enough miles in my legs to really handle it, but age wasn't catching up with me as much as it is now.
Tete DLO wrote:The guys PRs at the front end are in 2.12 to 2.19 range. And they stack up very well against their sometimes modest 5k/10k times.
This to me is the key point about these big workouts. In my experience, coaching myself, coaching others, and just talking to runners, it is very rare for amateur runners to hit marathon times that are "equivalent" to their shorter distance PRs. If there's a common thread to the ones who do manage it, it's usually that they do higher mileage and harder long runs. If you're a sub-15 5k runner and you're struggling to break 2:30 in the marathon, you are drastically underperforming.