400m speed for 800

You're lacking in endurance.

If a 25 second 200 didn't feel fast, your 200 pr is probably 23 or 24.

With a 24-flat 200, your 400 potential is 50 or 51. With a 23-flat 200, you're looking at 48 or 49. That's flying. You have plenty of speed to run sub-1:58. Hell, you have enough speed to run 1:50. Get that endurance up.

Thanks for your quick response. I highly doubt I could run under 52 for the 400m even with 23 mid speed. I just checked the mercier calculator and a 23.5 200m equals a 53 flat 400 which is what I think I could do. I could be entirely wrong though, thoughts?

Yes, if you ran 25 in a 600 then you have enough speed. Where were you in the race? A 25 is very fast people around 1:25. If you ran 25 you likely would've been 10m in the lead. I've run many 600's and I plan to go out in 26mid-27 and I run 1:22-3. You should only be going 25 if you are going for 1:20 or lower. Are you sure it wasn't 26 or 27 and you just heard 25 when you were approximately running past the 200 mark?

Do you know your 400 pb? Maybe you should run a 200, 400 and 1k or further race so you can see where you are lacking.

40mpw isn't that low. As you can see here, Jeremey Rae, Canada's up and comer in the 1500m (about your age) does that as a maximum.

As many say on this board, talk to a coach who knows you, forums aren't the place for advice.

Ya, do a couple of races at 400 (maybe 200) and some longer ones. It's a great way to see where you are at and what attributes you are strong in and where you are lacking.

If you have 23.5 ability as an 800 guy than you could run 50.0. 23.5 is equal in goodness to 53 from mercier.

Ok, I think I'll run a 400 time trial sometime. Regarding the 200 split in the 600m race, I was on the shoulder of the leader at that time. It was probably 25 high as well. Still, I think we both started too fast. He ran 1:23ish if I remember correctly.

Might have speed? wrote:

Thanks for your quick response. I highly doubt I could run under 52 for the 400m even with 23 mid speed. I just checked the mercier calculator and a 23.5 200m equals a 53 flat 400 which is what I think I could do. I could be entirely wrong though, thoughts?

If your speed endurance was as good as it should be for an 800 runner, you would be running 23.5 x 2 + 3 seconds = 50.0 for 400. With even better speed endurance, you would be under 50 seconds for 400.

The 25 in the 600 is definitely believable. I did a 600 time trial during outdoor season prepping for the 800 and accidently went out in 24, and finished in 1:22(it was stupid because when I went out in 27 I ran 1:20 but thats another story) Anyways, I have never ran below 50 in the 400 so my point is the OP probably isnt lying and like me he lacks endurance.