Note
I wonder if some of the same methods we used when PTOC/OK hosted the interscholastic championships would help address "fair play" at World Cup races?
I don't know what the World Cup environment is like these days. Back when I ran a few (late 1980s/early 1990s) there was plenty of following going on. I think that still goes on. You'd see a top runner leading a small pack of the 3-4 runners who started immediately ahead of them. That didn't seem to raise many concerns about "fair play." There's some boundary where people cross over some line and it becomes a problem. I'm not clear where that boundary is.