Rin, of course, failed to appreciate the joke even a little bit. How dare you mock his swimming?!

"There's more to my swimming than my kick."

All the same, he wasn't claiming that he could beat Mikoshiba just yet. The odds were 50-50 at best, and, depending on what stroke they'd use, might well be even less in Rin's favor. Of course Rin wasn't going to turn this into some immature bragging contest, the way Mikoshiba was doing.

Except that he was sort of doing that already. Oops.