Slightly OT ramble:I notice that the minimum speed is only mentioned in passing once on the website, and the time limit isn't stated at all.
This is a bugbear of mine - for some reason this info is very often omitted on otherwise brilliant websites.
As a rider I consider it rather important, and it's good to see it there in Black&White as a sanity check. (for example when you first assess a big ride, later in the year, travel plans do depend on knowing the rough finish time - it's easy to book the wrong train/plane/ferry if you make some simple bad assumption! )
(control distances are also often absent - this is more understandable as they can be fluid, but the "Plan A" would still be much appreciated by this rider!)