[8] In March, Sloman was one of six swimmers named to Team Australia in open water swimming for the 2022 World Aquatics Championships in Budapest, Hungary.

[10] In his second event, the 5 kilometre open water swim the next day, he tied Brennan Gravley of the United States for tenth-place with a time of 54:28.4.

[11][12] For his third and final event, the 10 kilometre open water swim held on 29 June, he finished in a time of 1:51:58.1 and placed eighth, which was 1 minute and 1.3 seconds behind gold medalist Gregorio Paltrinieri of Italy.

[13] At the second leg of the 2022 FINA Marathon Swim World Series, held in July at Parc de la Villette in Paris, France, Sloman won a silver medal in the 4×1500 metre open water relay in a time of 1:08:03.75.

[19] Across all of the legs of the World Circuit for the year, he earned 1600 points, tying for rank of sixth overall with Dario Verani of Italy amongst all male competitors.