What source? The one I provided for my own match history shows the last 20 games, in which I go 9 wins 11 losses.
Besides, those are mostly aram matches. As you said earlier they don't really count.
But since you finally answered me (took you long enough) I suppose I should say I do not accept.
If it was a 1v1 maybe, simply because 1v1 games can be pretty fun. You're not interested in fun though. You plan on saying you beat me if your team beats my team.
I've seen your win rate for the champions you play. If you come to my lane you will die. You might win the game, but you won't be a major player in that victory.
Yet you will claim you beat me anyway. You're not interested in having fun, you just want to win and show you are "superior" to other players.
How about this, and please write this down; when you hit silver 5 I will gladly accept any challenge you put forth. You can pick my champion and everything. I'll even post it on the boards for everyone to see.
But you have to man up and climb out of bronze first. I've never been in bronze, outside of a few Ultimate Bravery ranked teams, so if you can get to silver I'll accept whatever challenge you want.