Kartplan is gokart championships management system. It is a very robust solution that lets the users run many types of competitions (individual, team, cups etc.). The client recognized the need for such software which would allow the drivers to use one account across multiple championships.
Initially, it was beta-tested on two gokart tracks, now it's used on twelve. The admin panel features payment tracking, team builder and a lot of tooling for taking a competition from publishing the initial driver list to results.