Leaderboards for distance challenges should show the pace/split for the relavant distance, not the entire distance of the activity.
Example: say anything you're looking at the November 5k challenge. Currently as of this post, the second place person's distance and pace shown on the leaderboard is 20.4km and 2:44/km. That's cool that we can see that I guess, but I want to know what their actual 5k segment of that activity was that got them on the leaderboard. So if for example in that run, he ran a 13:50 5k in the middle of that run, then that time should be shown on the leaderboard instead of the full distance of the run. From my perspective, for the distance / race challenges it doesn't matter what the total distance of the run was, we want to know how fast they ran the distance depicted in the challenge.