As of the rules established in 2017, it has been arranged a new grading for competitions that will award points to the best placed athletes. Previously the maximum was G10, now it was doubled to G20. The "G" value of a tournament is used to calculate how many points an athlete is awarded for winning a tournament. For example the Olympics as a G-20 tournament is worth five times as many points to the athlete as a Continental Championship (a G-4 tournament). To compete on a WT Ranking-Points Competition the athletes need a Global License, which allows them to secure points on any country that hosts a tournament and it's affiliated with WT.