Originally Posted by
smarkinson
So far this month in the distance challenge: 247,394 riders have ridden a total of 116,947,484 km (472.71km or 293.73 miles per rider)
In the elevation challenge: 193,766 riders have climbed a total of 1,206,966,819 metres (6,228.99m or 20,436.35 ft per rider).
This works out to an average of 13.177 metres gained per km or 69.57 ft per mile.
So for a 20 mile ride the average elevation gain for all strava riders would be 1391.5 ft....
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Nice summary, but for folks who enter challenges, not so much a representative sample of all recreational cyclists, or even all Strava users.
For my part, VeloViewer has averages broken down by bike, which is kind of interesting.
"n/a," which is actually my first bike, shows averages of 19.9 miles with 440' gained, or about 22'/mile. I spent a lot of time on the Hudson River Greenway.

Once I got another bike and differentiated between the two, on the same bike it shows averages of 17 miles with 685', or 40.3'/mile, so rides got considerably "climby-er"
The FG bike shows a 32'/mile average.
On the "gran fondo" bike, days are often split, with rides to start and home from finish usually recorded separately, sometimes first and second half recorded separately, so the average distance is fairly short at about 24 miles, with an average elevation gain of 1305', so overall, 54.6'/mile average.
Edit/add for some VeloViewer bragstats:
Best month so far was May of last year: average elevation gain of 102'/mile, which included a day with 12,000' gained (incl. Passo Daone and Madonna di Campiglio), and another ride that averaged a massive 524'/mile for 12 1/2 miles (Cima Grappa), or a 9.9 on the Machka scale.