Did you?
have you won vs a kid in chess tournament?

I haven't played that many kids, but I've never had one cry upon losing. In a similar vein, I feel like crying about this thread.

As I've said a million times, kids are much better than adults. If a 12 year-old and a 50 year-old have the same rating, the kid is much better (and improving). So don't underestimate kids.
Yes, I have had young kids cry after losing to me. Most recently I swindled a young girl (about 10 years old, one of the highest-rated girls of her age) from a completely lost position and managed to win, and she started to tear up a bit after the game. But in some respect she was good about it- she was clearly very upset at herself, but she was quiet and didn't make a fuss or anything, and when I tried to console her a bit, she thanked me and quietly left the tournament hall. Certainly there will be other kids with more violent reactions.
To be fair, the vast majority of kids won't do this, but don't be surprised if it happens.

As I've said a million times, kids are much better than adults. If a 12 year-old and a 50 year-old have the same rating, the kid is much better (and improving). So don't underestimate kids.
Yes, I have had young kids cry after losing to me. Most recently I swindled a young girl (about 10 years old, one of the highest-rated girls of her age) from a completely lost position and managed to win, and she started to tear up a bit after the game. But in some respect she was good about it- she was clearly very upset at herself, but she was quiet and didn't make a fuss or anything, and when I tried to console her a bit, she thanked me and quietly left the tournament hall. Certainly there will be other kids with more violent reactions.
To be fair, the vast majority of kids won't do this, but don't be surprised if it happens.
You should have let her win .

Of course, I had beaten a lot of kids in my tournament career. They are tactically sharp but their positional understanding is lacking. Also they are sometimes annoying when they asked, "draw"?, "draw"?...
By move 9, he had dropped a piece to a tactic in my favorite opening. He was in tears when he realized what happened. 10 moves later he was down a full rook and had become an emotional wreck. His dad had to intervene and made the kid resign. I felt a little bad, but there was $100 on the line...I still spent the check :)
About 3 months later I saw an article on the chess life website, he had just won like $700 in a CCA event...*sigh*

Of course, I had beaten a lot of kids in my tournament career. They are tactically sharp but their positional understanding is lacking. Also they are sometimes annoying when they asked, "draw"?, "draw"?...
Funny about that drawthing. A month ago I was under heavy pressure from a 10 year old kid. I was very weak in the center, and he had 3 e and d pawns. I had the bishoppair. He made one unprecise move and lost the pressure, and he agreed to trade off some pieces. Then my bishops grew strong. He was leading in move 19, I equalized in move 20. He offered draw in move 22, and was competely busted in move 25 when my bishops got paralell long diagaonals and his knight landed on the rim, and his bishop had short scope.
If he had asked for draw in move 19, he would have got it. But not in move 22.
did s\he cry?