DougC wrote:
I think you'd need to improve on those shorter PRs to get down to 1:05. My 13.1 PR is 1:08:26 and my other PRs are 30:32/14:49/3:53(1500)/2:00.
I don't think I could have gotten close to 1:05 without improving the other PRs.
Well, sure. But the real question is whether you should specifically try to improve those PRs or rather focus on your goal distance, and let the other PRs drop (as they inevitably will, if you bother to race the distances).
I think it's generally a mistake to put to much emphasis on hitting particular PRs to get yourself ready to PR at a different distance, especially when the distance is longer. What you should do instead is just focus on balanced training:
- Do strides and real sprints year 'round
- When you're a long ways out from your goal race, do intervals at 30-45 seconds per mile faster than goal race pace. Keep the recovery long enough that you aren't accumulating too much oxygen debt. Basically, take what would've been a really hard 3k workout and double the recoveries.
- As you get closer to the race, move your workout pace closer to goal race pace. Do mile repeats at what feels like 10k pace (just so long as it's a solid step faster than goal race pace, you're fine), with short recoveries of 1 minute or 90 seconds.
- In the last 6 weeks, do very hard runs at race pace. Alternate between uninterrupted and broken runs. So one week you might do 30 minutes at race pace. Next week you might do 3x13 minutes with a couple of steady minutes between. Then do the same distance you did in one run (39 minutes, or 40 if you want a round number).
- During each phase, you do one workout per week at whatever speed you're emphasizing and one workout per week at the paces that you already worked on, just to maintain. Those maintenance workouts can be easier, and they can contain a blend of paces.