I've done it 16 times, it's always a good challenge (although I really need to get over to Ven-Top).I quite like the Alpe, and according to Strava I’ve done it 15 times. I don’t subscribe so can’t see full data but the slowest I can see of my efforts in preview is 1:10 and the fastest is 45:21
So whatever your result first time round @Dan77 you can be almost certain you’ll beat it significantly in the end 🙂
My first ride up it was the slowest, at 1h 40m.
As for the other 15 times?
Yes, August the 9th...
That's where the 100% trainer difficulty really bites (it did on my first ascent of the Alpe, too). Raw wattage doesn't consider the strain on your knees. But just fit a nice dinnerplate and you'll be fine!