Yeah, the numbers of rides or riders seems to be presented in different ways, which confuses things. For one thing, rankings only include rides that were public, and only one ride per 'athlete', but presumably the total number of riders indicated includes 'private' rides as well, and of course 'attempts' includes every attempt.

At first I was confused about KC5 as well, but after looking at the map, I realized that E. Clinton, where it ends, is not such an uncommon place to turn off (in fact, I take it often myself ), and yes, all the folks who ride up through the park and head right back to the GWB on 9W miss Kiku and all the other preceding segments. It doesn't seem to be as common to take the same loop clockwise, even though it's simpler. I guess it's because only anti-clockwise goes all the way from the river to the top in one continuous climb at Alpine if you just drop to the boat basin. Me, I just go in from the top anyhow, and make a climb sandwich of it if I'm hungry that way. Come to think of it, people probably like to take the loop anti-clockwise because they're eager to get into the park.