Regardless of the chip amount you have you can take part in these tournaments which focus on the amount of XP earned rather than chip count to win. (wolfsgamingblog.com)
In fact, characters can't level past 20; my main group didn't gain XP for the last 20 % or so of the game! (indiehangover.com)
But that doesn't mean you're not still earning XP with every kill or activity. (gamesradar.com)