During a recent Hope on the Slopes 24-hour ACS skiing fundraiser, I used my watch to track vertical feet throughout the day. The watch isn't perfectly calibrated, but it's reasonably accurate. The watch counts a run any time you make a vertical change of at least 100 feet (so when you ride up the lift you are going up at least 100 feet, it counts that as a run.) We started skiing at 9:30am and didn’t look at the watch until 7:30pm. I only skied on one lift and it had a vertical rise of 1210 feet. At that time I was surprised to see that I had skied 20,100 feet and 41 runs.
Clearly 41 runs * 1210 feet = 49610 feet. The watch incorrectly said that I had skied 20,100 but had the correct number of runs. Huh?
I had plenty of time to think this over while I was riding the lifts later that evening. Eventually I realized that the watch was actually tracking all of my vertical feet correctly. Do you know what happened?
I'll make another post in a couple days with the answer. Leave a comment if you know the answer.
These additional facts may or may not help you: