Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I finished a game, got my xp and then got off for about an hour. I got back on the game and joined a match that had just ended and when it brought me back to the match details I got the same xp as the game I played an hour before.