I like this. I would like the option to save game stats locally so they are not lost after 10 games. Another options would be a button to save the game stats locally at the end of match as they are already on the players computer.
I personally would love to keep long term match history and be able to graph it all out. I would also like to have the option to tag these saved stats as the role you played. Then graph out wins losses over time as that role, or other stats kills deaths, number or CS at the X min mark.
League is really lacking on stats 