I'm a 1:28 half marathon runner, Trail_Rat is a 22:10 10 mile TT rider. I know which one of us is fittest.

Based on that your TT time is better than their half marathon time.

bearing in mind im an endurance rider not a sprinter 😉

although
i do no running training and can get within 3 mins of the fast lads at a 5k race – then pump them rotten on the bike with 32mins for 20k vs their 36s in local duathlons

oh yeah and to settle this me an goan are going to do nofuss 10 hour enduro on saturday and the very thoughtful half marathon the next day ….

Just **** eat him, that'll show the skinny bastard who's top of the food chain 😮

The half marathon time is very weak IMO.
I ran 71 minutes for a half marathon then soon after developed an injury that lasted for quite some time. I cycled some 10 mile TT's and could only manage around 26 minutes.

Biathletes are universally regarded as the top athletics with regards to VO2 MAX, hand/eye, muscular endurance, reaction speed etc.

Include someone that can ski and shoot in your race, see what happens!

simple fitness test like this doesn't take very long and would give you a rough idea…

<http://www.forcesfit.co.uk/TestMatrix.pdf&gt;

Kev

bum… forgot, don't need the 'arrows' anymore…

http://www.forcesfit.co.uk/TestMatrix.pdf