Does this race equivalency calculator look right?

Supercell

I was looking at https://sporttracks.mobi/labs/race-finish-time-predictor today and was interested to see how the Dublin Half times might predict a full marathon.

So for example the winner in the M55-59 category had a chip time of 1:22:42 which translates to a full of 3:01. I'd of thought it would be lower than that but what do I know, are these realistic? Just curious what super humans can do in my, soon to be, age group mainly!

Trampas

1:22 half id expect mid 2:50’s depending on the course but easily under 3 hours on a normal marathon course

crisco10

My PBs are all from last 6 months and in that range:

5k: 17:51 (at Jingle Bells, not sure that counts!)

10k: 36:51

10M: 1:01

Half: 1:21

Full: 2:56

so table generally looks similar, bar the 5k times.

Itziger

Agree, that the Half to Full is off. Nobody who runs a 1.22.** would be happy with anything other than a sub 3. The old H*2+10=Full doesn't work for everyone but I prefer it to the one above. My pbs are incredibly similar to Crisco's and my Full I would consider my weak point at 2.57.

Murph_D

Well it does say there’s an assumption of slower longer distances - so it’s allowing a ‘fade’ like some calculators do. In that sense it’s probably pretty accurate for many runners, but maybe less so at the sub-3 level. Twice HM plus 14 mins is my own mid pack standard (1:33 HM, 3:20 M).

brick tamland

Just noticed that Strava have added a projected race times based on your training/milage. Not sure how long it's been there