Arantxa Rus defeated Lulu Sun 6–3, 6–0 in the first round of the WTA 250 event in Rabat on clay on 16 May 2022, a result that confirmed the strong pre-match odds in Rus's favour. The Dutch player dominated from the outset, conceding only three games across two sets against the New Zealand qualifier. Sun, competing at significant odds of 6.52, struggled to find rhythm against Rus's controlled clay-court play and was unable to mount any sustained resistance. The decisive victory underlined Rus's comfort on the surface and her positioning as the tournament's clear favourite at 1.14 odds. The result keeps Rus on course for a deeper run in Rabat.