SlowDad wrote:
I'm a 35-year-old hobby jogger. I run ~ 30 mpw. Which of my recent race times is better (I realize that neither is particularly impressive):
1. 39:26 10k (certified course, flat, no wind)
2. 59.76 400m (FAT, windy)
And what would you expect a mile time to be for someone with this profile?
Your 400 is much, much more impressive.
If you could gather the 20 in a race who ran closest to 39:26, say the 10 just faster than that and the 10 just slower than that in the 39:xx range, I GUARANTEE less than half of them would break 60" in a legitimate 400. For a recreational distance runner of that ability, you are quick.
I know masters women and senior citizen men who can race under 40 in the 10k all week long. Sub-60 400? Not so much.
With a 59s 400 you should easily be 2:08-2:09 in the 800 and get in the mix at masters meets if you're still around there at 40. A 39:xx 10k? That could be an OK marathon split for a M40 masters runner, but as an actual 10k time you are in the ladies pack :)
Really, among hobbyists, you have good speed for a 39:xx runner, and good endurance for a 59s runner. Enjoy running some mid-d while you're still youngish and with some basic speed!