Iga Swiatek was the most successful tennis player in 2022 but she wasn't the highest-paid one as that went to Osaka.
Emma Raducanu, a tennis player, was ranked as the second-highest-paid female athlete in 2022, after Naomi Osaka. Iga Swiatek made less money than either of them, but the majority of her prize money came from playing tennis rather than through endorsements.
She was very keen on pointing that out when asked to comment on the list: “I’m glad to see that ranking. Money isn’t my motivation but the tricky thing is I earned it really on court & other players earned it mostly from endorsements so there’s a difference. I feel I can still expand my business a bit."
While true, athletes generally made more money from various types of endorsements and Swiatek could certainly improve in that department. A big key to that is marketability which comes from popularity, something she lacks compared to Osaka and Raducanu at the moment.