I'm an [amateur] boxer, in NYC.
The homophobia sucks in boxing community cause otherwise most boxers are actually super nice, down-to-earth people. It doesn't seem worth the grief to "come out" in the sport honestly, even though I came out in high school in a rather public way. And for the most part, it doesn't even really come up, boxers like to talk about boxing and that's just fine by me, but there is always homophobic crap tossed around too, and I hate biting my tongue.
And... I'm out in every other aspect of my life, so I get a little nervous because NYC, as anyone lives here can tell you, can be extremely small and it wouldn't surprise me if the two worlds inadvertently mixed at some point. I've brought dates to fights and even my ex to work out with me at the gym once.
Still, boxing's the best sport in the world, and I've found there are a surprising number of gay men in sport, including ex-military boxers and I even met a UFC fighter and Olympian. So, we are around, we just keep a low profile.
I *wish* the Gay Games would do boxing events!!