100 mile training ride!

This is our first training ride of 100 miles; the distance we need to cover each day for our 10 day challenge.
We set off from St Albans in light rain at 8:30am & headed out in a circular route, (click here for map) taking us out towards Oxford via Marlow. By pacing ourselves we made a good steady time but as lunch approached the heavens opened. We stopped in Chalgrove (around 12 miles from Oxford) & took cover in a bus shelter where we ate lunch. After re-fuelling we set off in the rain for our final stage of the outward bound stretch, ending at Wheatley, just east of Oxford. Graham has friends there & delivered a birthday present. This gave us another break from the weather & we were able to dry out a bit whilst appreciating a hot drink.
As we left Wheatley the weather delivered good & bad news. The bad news was the wind had moved around from the west to the south so we headed home in a strong headwind. The good news - the rain stopped & the sun made an appearance & stayed with us all the way home.
We completed the return leg at a slightly slower pace, probably due to tiredness & the headwind, but still made good time & were home just after 6pm, having completed 104.5 miles.
Not surprisingly, we both found our legs were stiff that evening, but amazingly they recovered overnight.
So we now know we can do the daily distance, but can we do it on 10 consecutive days? Also the route gave an ascent of 1770m which is only half the hill climbing necessary on some of the days!
William.