kat bug?

So I was playing an ARAM and at the end of the game I noticed the enemy had 230k dmg on the dmg to champions chart. I am 100% sure she didn't do that much damage, she did quite a lot but no way was it 230k since everyone else was around 20-30k. Is this a chart bug or is there a bug which i missed while in game? has anyone else experienced this?