There are two main rankings systems, the Championship Tour rankings and the Qualifying Series rankings. The CT rankings determine the World Champions while the QS rankings help determine who will qualify for next year's Championship Tour.
The Championship Tour rankings will include results from the Top 34 and Top 17 as well as the replacement surfers. Only results from CT events will count towards the CT rankings. The best 9 of 11 results will count towards the men's ranking and the best 8 of 10 results count towards the women's rankings.
The Qualifying Series rankings will include results from all WSL surfers competing in QS events. The best 5 results will count towards the rankings.
Therefore the 2018 WSL Top 34 will be comprised of:
- Top 22 finishers on the CT rankings
- Top 10 from the QS rankings (excluding those who have already qualified through the CT Rankings)
- Two WSL Wildcards
The 2018 WSL Top 17 will be comprised of:
- Top 10 from the CT Rankings
- Top 6 from the QS Rankings (barring those who have already qualified through the CT Rankings)
- One WSL Wildcard