Etape medal times

I'm not absolutely sure if there are different medals at the Etape but on the Mondevelo site there is a breakdown by 'objectif' and this could be Gold, Silver & Bronze.

Gold under 7 hours

Silver under 8 1/2 hours

Bronze all other finishers

My French isn't up to much but I think they might be saying that to prepare for a Silver medal time (e.g.) then you'd have ridden about 5000km, with 6 rides of 150km+ and taken part in 3 sportives.