10 miles TT is a great UK tradition - exported to NZ here (I wish we had the same tradition in France).

Sometimes pro mix to the amateurs, and deliver data on Strava.

This week, Joe Skipper give us the opportunity for a fun benchmark (fun because a 10 miles TT / 20mn bike race is not the right way to benchmark a low VLaMax LD triathlete with pro cyclist,of course) :

https://www.strava.com/.../3129807554/overview

1) around 380w average/NP : quite lower than the 430/440 w of a Alex Dowsett (similar size and weight), when he was chasing this record, and preparing for the HR.

2) the "104%" indicate current FTP for Joe on Strava is 365w. To be compared with similar size and weight athletes FTP :
Dowsett - 400/405 w (concentrating on bike, and on the HR, at this time)
Wurf - 380w ?
Sanders - 390w ?

3) Skipper probably have difficulties to go above FTP (104%) while a Dowsett preparing for the HR was going 110% on this 17/18mn run. Low VLaMax talk ?

4) taking into account the half turn and not ideal road tarmac, probably a SCx around 0.22. Not quite as good as a pure cyclist, but Joe position is quite high.... apparantly he is prepared to run after the bike.