 OSullivan akatanga mwaka wa2010-11 paEvent 1 yePlayer Tour Championship, kwaakarasikirwa ne0-4 mumakota ekupedzisira naJamie Cope. OSullivan akatevera kukwikwidza paChiitiko 4, kwaakasvika kumagumo, asi akarasikirwa ne3 × 4 naBarry Pinches. PaWorld OpenOSullivan akaita rekodhi yake yegumi yekupwanya zvakanyanya mufuremu yekupedzisira yemutambo wake kurwisa Mark King, iyo yaakakunda 30. Zvisinei, aifanira kunyengetedzwa nemutongi Jan Verhaas kuti atambe dema rekupedzisira, sezvo akanga ava kuziva kuti pakanga pasina mubairo wakasiyana wemari yekuputsa kwakanyanya mumutambo, asi mubairo we 4,000 chete wekuputsa kwakanyanya. Kunyange ipapo, akaridza dema rokupedzisira nenzira yokusaitira hanya. OSullivan akabva akunda Jimmy White 31, Stephen Hendry 31, Stephen Maguire 31 naPeter Ebdon 31 kusvika kumagumo, kwaakarasikirwa 15 naNeil Robertson. OSullivan akapinda muPremier League Snooker, uye akakwanisa kuenda kumagumo asina kukundwa. Akazokunda Neil Robertson 51 mumasemi-fainari, uye Shaun Murphy 71 mumutambo wekupedzisira, kuti atore zita rake repfumbamwe rePremier League Snooker mumakore gumi nemana. Mumakwikwi eUK muna Zvita, OSullivan akatambura kubuda kwekutanga, achirasikirwa ne6-9 naStuart Bingham mumutambo wekutanga. 