[1][2] It was the eighteenth series under the promotion of Benfield Sports International, an IMG company.

The world title was won by Tai Woffinden, who finished 10 points ahead of Bartosz Zmarzlik in second with Fredrik Lindgren taking the bronze medal.

It was Woffinden's third world title, following his wins in 2013 and 2015, making him the most successful British rider in history.

For the 2018 season there were 15 permanent riders, joined at each Grand Prix by one wild card and two track reserves.

The final four riders were nominated by series promoters, Benfield Sports International, following the completion of the 2017 season.