cool thread, on what's harder: sub3 1km vs sub3 marathon
http://www.letsrun.com/forum/flat_read.php?thread=8181524for me, i'd say sub3 marathon is harder.. but i think it's because i'm more explosive. my mile time vs 2 mile, 5k, 10k, half, full etc is way off .. mile is much faster, so is 1km. however, my 800m sucks. My 200m/400m is ok, but 800m is pretty awful.
so I seem to be right around 1200m to 1 mile, everything else in each direction starts to get slower (other than sprint speed: 400m = ~60, 200m = ~28).
my 1200m (watch split) is like 4:39 pace, mile is 4:49/4:50 (watch split).
my 800m is (2:19) ~4:38 pace, 2 mile is ~11:06 (5:33min/mi).
when i'm running a mile, i can feel a different level of power & comfort, vs say a 5k at a slower pace. My 5k's usually feel way off. My mile efforts seem like what i'm "meant to do". It just clicks. I could be in 4:5X mile shape and find myself struggling with 5:5X min/mi 5k pace. But then I could also potentially feel "the same struggle" at 5:4X. Bottom line, it's a struggle for 3.1 miles. Even the first mile feels like a struggle many times, and it could be anywhere from 5:2X to 5:5X .... but, i'm im 4:5X mile shape so how could 5:2X-5:5X be a struggle? There's something about "letting go" in a mile that makes me feel "proper". It's something I keep trying to figure out, because it doesn't make much sense to me. How can you crank out 4:5X for one hard mile, then hurt at 5:4X-5:5X mile in a 5k race? It's like the "holding back" changes up things considerably, form or energy system wise etc, and that leads to more fatigue. I've mentioned it before, when I feel more free out there, really letting go and letting my speed come out, letting the hips open up, I feel better. But I have to really stay loose. If I don't stay loose, I can tank hard. It's as if i'm running by pressing the gas pedal & brakes simultaneously.
this running stuff is nuts, really love it.