 King akatanga mwaka wa2012-13 nekutadza kupinda mumitambo mitatu kubva mumitambo mina yekutanga. Iyo yaakasvika yaive Shanghai Masters, kwaakakunda Zhao Xintong 53 mumutambo wewildcard uye mudikani wemuno Ding Junhui 54 mumutambo wekutanga, mushure mekudzikira 03. Akarasikirwa ne35 kuna Shaun Murphy munharaunda inotevera. Mambo akaona Mark Williams 63 mumutambo wokutanga we2012 UK Championship, asati atora 30 inotungamirira Luca Brecel ane makore 17 kuti arasikirwe 46. Akasvikawo munharaunda yechipiri yeGerman Mastersnokurova Stephen Maguire 50, asi ipapo akarasikirwa mufuremu rinosarudza kuna Matthew Stevens. King akakundikana kupinda muWorld Open uye akarasikirwa mumutambo wekutanga weWelsh Open neChina Open. Akatarisana naMark Allen mumutambo wokutanga weWorld Snooker Championship uye akaunza kushamisika kukuru nekurwisa kubva pa68 pasi kuti abudise snooker yake yakanakisisa pakupera kwemutambo mukukunda kwe108. Akamhanyira mukutungamira 62 muchikamu chekutanga chemutambo wake wechipiri wekurwisa Ding Junhui, asati adonha 79 kumashure muchikamu chinotevera uye pakupedzisira akarasikirwa 913. King akapedza mwaka ari nhamba 29 munyika yose. 