It's because you're placing a wiki link in argument number two {{{2}}}, and then placing arg 2 inside a category (which is itself a link). Lose the link in the swimming honor, and the problem will go away. --Jomegat (talk) 22:04, 15 November 2014 (EST)
Alternatively, you could change the template to not add it to a category relying on arg 2. That's what I recommend. I'm not sure what you're trying to accomplish with the category. If you would explain your intentions, I might be able to help. --Jomegat (talk) 22:06, 15 November 2014 (EST)