261 experience lost in duels. Doesn't include draws or wins.
I tryed using a calculater, but it said syntax error, so I just the simple math without it, it was easier.
I know it doesn't tell you the points you lose or gain total. But I decided to do the math, and give or take a small margin of error, i've lost 261 experience points dueling. Now I haven't calculated how many points i've won. But once I do, I'll add them together and see the result.
I wouldn't mind having the site tell you this, but then maybe people wouldn't duel as much if they knew just what they were losing or winning. I don't know.