In article said:
"Donovan Rebbechi" <[email hidden]> wrote in message
"]news:[email hidden]...
Quoted message said:
At risk of repeating myself, the WAVA tables do include
these distances.
The Daniels charts are based on curves, so you can use
them for any
distance
Quoted message said:but I wouldn't recommend using the Daniels tables to
predict marathon
times, as
Quoted message said:Daniels' numbers don't work very well beyond a 2hr
duration.
Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗
Donovan,
I checked the WAVA tables and they were for age and gender
handicapping, not race prediction.
I will check again. I may have scanned too quickly.
You can use them for race prediction as well.
I have a WAVA based predictory online here:
panix.comwava.htmlOpen ↗
It's simple enough that I can explain how the predictor
works, so here goes:
It works as follows: for each distance, there's a "gold
standard" time, T. For each distance, there's an age
correction factor C. So if your time is t, your rating is
r = T/t * C
one can invert this formula -- if your desired rating is r,
then your required time is
t = T*C/r
You can predict a time, by computing the rating for one
performance and using the inversion formula above to get the
time at that rating for the other distance. So you time
predicted from a performance t1, at a distance with "gold
standard" time T1 correction factor C1, when the race is to
be run over distance with gold standard T2, correction
factor C2 is:
t2 = T2*C2/r1 = T2*C2/(T1/t1 * C1)
Cheers,
--
Donovan Rebbechi pegasus.rutgers.edu~elflordOpen ↗