Update May 2014: As Strava’s ride pages have changed format significantly, Giro-Your-Strava no longer works. The good news is that Mesmeride does the same and more!
Update 13 July 2013: An updated version of Giro-Your-Strava is now available here.
Now, here’s a bookmarklet. Drag it to your bookmarks toolbar, load up a favourite hilly ride on Strava, and click the bookmarklet.
A mysterious new button will appear in the graph menu. Go, on click it!
And up pops an elevation graph that makes it look like you’ve been riding the Giro!
The algorithm picks the categorised climbs from your ride (and tries to figure out the most appropriate segment where multiple segments finish at the top of a hill). Non-categorised segments are currently ignored. The whole project is published on GitHub, so you can tweak it and improve it to your heart’s content. Your first step should be to tidy up the mess I’ve left you 🙂