Pets

Which would mean that per Olympic regulations, he is not eligible to compete with cis women, although trans women are, as I understand it.

Seriously, I am very supportive of the trans community and sensitive to trans issues, but I honestly don't see it as anti trans to point out that this dog is a dude in every sense of the word. I think it would be nice if it was worded differently; i.e., "Even if he had completed the entire race, Nazgul’s time would not have counted as he is a cis male." But unfortunately, a lot of people might not know what meant, and all the transphobe bigots would have an excuse to pitch a hissy fit, which would suck. Sometimes you just can't win!