Spence wrote:
Sorry, that's not what I read, SON. Forgive us if Ed Eyestone and Jack Daniels are better known than you.
Did Eyestone actually train that way, or was he just regurgitating what he's heard? If he actually trained that way, that perhaps explains why, despite his prodigious talent for long distances, he has run far more crappy marathons than good ones?
If you can run tempo runs at half marathon pace then your half marathon sucks. If it sucks, then the most obvious reason is that you are overtraining. The most common way of overtraining I've seen (35 years of observation) is people racing the tempo runs. At five miles into a half marathon race you should be hanging on with white knuckles. That's NOT tempo pace, sonny.
If you'd learn to do your tempo runs at the correct pace (my opinion one of the most important workouts for HM success) your half marathon PRs would improve. What the hell do I know, right?
It should be noted that Ken Martin, a Jack Daniels trained runner, used to have "brilliant" tempo runs for a few months then drop into an abysmal slump that would last for months. "Mysterious" is how Ken described those slumps to me. I told him there was nothing mysterious about those slumps at all, "it's obvious, your tempo runs are way too fast." Jack Daniels has never been a competitive runner, he has no idea what is too hard for a tempo run.
Tempo runs are not races, they are a step towards an ultimate goal. You should feel invigorated afterwards, not exhausted. They should be done at about marathon pace up to halfway between marathon and HM pace.
There are no rewards for tempo runs.