 Nyorai mberi kweiyi ndima - OSullivan aive nemwaka wakabudirira zvakare muna 20022003, achisvika kumakundano gumi nematanhatu mumakwikwi manomwe ekuronga. Akatanga mwaka nekukunda Scottish Masters yekukoka, achikunda John Higgins 9 4 mufainari. Akasvika kumaquarter-finals eLG Cup, achirasikirwa nemukwikwidzi Chris Small; yekupedzisira 16 yeBritish Open, ichirasikirwa naPaul Hunter, maquarter-finals eUK Championship, ichirasikirwa naDrew Henry; uye maquarter-finals eWelsh Open, ichirasikirwa naMarco Fu. Pashure peizvi OSullivan akahwina back-to-back ranking mazita, achikunda Hendry mumagumo eEuropean Open, uye Higgins mumagumo eIrish Masters. Akasvika kumakwikwi e16 ekupedzisira eScotland Open, asati arohwa naAlan McManus. Kukundwa kwake chete mumutambo wokutanga wemutambo wemwaka uyu kwakauya paWorld Championship, apo akarasikirwa 610 mumutambo wokutanga kurwisana naMarco Fu asina kuiswa, pasinei nokuita kuputsika kukuru mumutambo. Kukundwa uku kwakamuita kuti adonhe kusvika panhamba yechitatu mumatanho. Akatora chikamu muPremier League, asi kunyangwe achitungamira tafura mushure mechikamu cheligi, akarasikirwa ne4 × 6 mumutambo we semi-fainari naFu. 