400 m question? what should my time be

Question

i was practcing running the first 300m of a 400m today. i ran them 4 times. race pace and i came out with a time of 42 seconds. what should my 400m time be.. i wasnt tht much tired at all.

and im 15 5"11, 157 lbs..

and my 100m time is 11.5 if tht helps

Answer 1

i don't agree that you can extrapolate but I would guess 56

Answer 2

I'd say 55 to 56 but might be a little better than that. That last 100 meters is when it gets tough. Hope I'm wrong and you do even better. Good luck

Answer 3

that's pretty slow for someone who runs 11.5..You're probably around high 53-57..maybe a i'd guess 55-56 though, but who knows, in practice you dont have the adrenaline rush that is always X-Factor.

But it sounds like you could be a lot better with some work with your endurance. I feel with some practice 51-52 is very do able with 11.5 speed

oh man..didnt read that part about you feeling like it was easy..in that case i'd reckon  you're about 50-51 ish possibly high 49's ..possibly...But what's your coach thinking?..42? that's like an 800 race pace not 400!

Answer 4

I think you should be expecting about 50-53.  Considering you did 4x300s at practice and came out with 42.  (14sec per 100).  You'd probably be able to run a bit quicker in just one full-out 400.