I'm thinking there must be some incredible stories out there. Obviously a huge vertical climb is going to be on a non-technical route. The most awe-inspiring example I can think of is the Hard Rock 100 Trail Run in Colorado's San Juans. It's roughly 33,000 feet up, and of course 33,000 feet back down, over 100 miles. The course record is somewhere around 24 hours. So that's 33K feet or about 10K meters in a day.
Not to say I'm anywhere near that class. I think my best effort was up and down the Barr Trail on Pikes Peak. That's 7800 ft. (6.3K to 14.1K) over 26 miles RT. That was enough for me!
Stories?