Erg time predictions?

[Geoffrey Hoffman]

I was wondering if anyone had any ideas as far as conversion factors
for expected erg times: ie if you got something on a 5k, you can convert
it to a prediscted 2k time to try and get. I knew of a few with running,
that worked pretty well. I'm just trying to see if i can figure out where
i am, and then see what i should pull on each peice.

Thanks

Geoffrey Hoffman
Cornell University

[Ian_Adams]

There are too many different factors to possibly come up with a
prediction. Factors include weight and conditioning; that is, if you
are a cardiovascular beast but have no real brute strength you may do
well on a 5k, but totally bite it on a 2k.

[Stephen Rose]

You can calculate your splits, time, or number of meters with the
formulas below. If you can guess what kind of splits you can hold, you
can figure out your predicterd score. Unfortunatly, you actually have to
hold those splits to get that score. :-)

d=distance (meters)
t=time (minutes)
s=splits (time/500m)

d=(500t)/s

s=(500t)/d

t=(ds)/500

I prefer to use a scientific calculator, because they generally
have a DMS (or ' ") button which allows you to enter minutes and seconds
without having to figure seconds as fractions of minutes.

Steve

[cwa...@usa1.com]

In article <gch2-28099...@128.253.254.98>,
gc...@cornell.edu says...

Take your 2k 500m avg. split times and add an expected 1 sec for
each extra 500m you plan to go.

e.g. 5k would be 3k extra (6 x 500m), so add 6 sec to
your old 2k avg. splits for 500m.

If you averaged 1:40 for 2k (6:40 total),
your new target would be 1:46 for 5k (17:40 total).

I've heard rumor that some people only lose a second or two
per 500m split when they go up to (only) 5k, but I don't
know any of them. This formula seems to break down for me
when extrapolated out for really long pieces (for me if I'm
still
sitting on the erg after 20k w/out a break, it's long) since,
although I always have the power to row better than say 2:30,
after 3
hours w/out a break my back would be toast (rye or wheat).

Chris