yung4evr wrote:
In general:
10x400@mile pace=60sec
5-6x800@2mile pace=60-90sec
3-4xmile@5k pace=90sec-2min
Initially start with the upper threshold and make adjustments as needed.
This is far from general. This kind of rest is for someone with years of background and experience.
I'd recommend getting away from time and go for distance recovery: 200 jog between 400s, 400 jog between 800s, 800 jog between mile repeats. Run/recover as slow (or fast) as needed to run all your intervals at your current (or a tad faster) race pace for each distance. Current race pace is whatever time you posted in your last race. Not what you hope to run or think you can run.
Though you're not adhering to any time limit between intervals, still time how long it's taking you to recover so you have a good baseline.
A general rule is--as you gain more background from year to year of training--you should be able to run faster intervals with less recovery. I've seen people make great strides in the span of the season, cutting their recovery in 1/2 if they're fairly new to the sport. For me, I started with 5 min between mile repeats at 5k pace, and got down to 2 min running intervals much faster (from 4:40s to 4:20s), but it took me 4 years of background.
So, you may need 2 minutes between 400 repeats to hit 70s this year, then next year find you need 90 seconds to hit 68s, etc.
Best of luck to you.
Oh, and remember to record your recovery time in your log to reference next year. Memory has a way of making your workouts faster and requiring less recovery than you remember.