Many times by the end of my 3 sparring rounds, usually 1 minute to 2 minutes per round, I find myself barely breathing, and super tired. And naturally you should expect to be tired. I'm wondering ways you guys use to help with endurance, so what do you do to help you last longer in a fight? Another thing I was wondering if there was a limit to endurance, like by the end of most of my matches I'm breathing really heavily, and I almost feel as if I don't have enough breath. The other day I fought another kid that was a belt or 2 higher than I and by the end of the match he didn't even seemed dazed, maybe it's just me or maybe their endurance is a lot better than mine. Any tips or tricks are helpful, and appreciated.