[1][2][3] The 4×1500 metre mixed relay event was brought back after its debut at the final leg of the 2021 FINA Marathon Swim World Series and as part of the Abu Dhabi Aquatics Festival.
[4] Officials and athletes from Russia and Belarus were banned from the entirety of the World Series due to the Russian invasion of Ukraine.
[1][3] At each stop of the World Series, the top ten finishers in the 10 kilometre events earned points for the place finish, overall standings and winners were determined by the total number of points each athlete has earned across all stops.
[28][29][30][31] On 23 March 2022, FINA announced that for the remaining duration of the 2022 year, the Russian Swimming Federation had withdrawn its athletes from all FINA events, which included the Marathon Swim World Series.
[32] On 21 April 2022, FINA banned all Belarusian and Russian athletes and officials from all FINA events through the end of 2022, including the World Series, attributing the intentional exclusion of these countries to the Russian invasion of Ukraine.