Best 800m meter predictor: (6/5)400m + (1/5)1600m = 800m

Your 400m is 55. Your 1600m is 4:30

800m = (6/5)55 + (1/5)4:30

800m = 66 + 54

800m = 2:10

Of course 66 + 54 = 2:00...

With a sprinkle of common sense you should be able to predict your 800 within 2-3 seconds.

Me: 59, 4:22

59 * (6/5) = 70.8

4:22 * (1/5) = 52.4

52.3 + 70.8 = 123.1 = 2:03.1

Actual fastest: 2:02.3

Of course, 2-3 seconds is a huge margin of error for an 800.

Jay520 wrote:

Your 400m is 55. Your 1600m is 4:30

800m = (6/5)55 + (1/5)4:30

800m = 66 + 54

800m = 2:10

No chance a 4:30 1600 runner (2:15s) can only run 2:10.

Consider this albeit extreme example:

1600m: 4:15

400m: 55

800m = 6/5*55 + 1/5*4:15 = 66 + 52 = 2:08, which is slower!!! than 4:15.

I think this calculation puts way too much emphasis on the 400.

66+52=1:58

den bosch wrote:

No chance a 4:30 1600 runner (2:15s) can only run 2:10.

Consider this albeit extreme example:

1600m: 4:15

400m: 55

800m = 6/5*55 + 1/5*4:15 = 66 + 52 = 2:08, which is slower!!! than 4:15.

I think this calculation puts way too much emphasis on the 400.

Well... the 4:30 runner calculation is actually 2:00.

And your 4:15/55 is actually 1:58.

What Kanye said. We both add 10 extra seconds for some reason.