Pedzisa mutsara unotevera: Courtois akafambira mberi kuburikidza nehurongwa hwevechidiki hweGenk, uye pazera remakore gumi nemasere, akaita basa rinokosha mukukunda kwechikwata cheBelgian Pro League. Muna Chikunguru 2011 akabatana neChelsea nemari inonzi £ 8 mamirioni, uye akabva akweretwa kuAtlético Madrid. Mumwaka mitatu ikoko, akakunda Europa League muna 2012,
Copa del Rey muna 2013 uye zita reLa Liga muna 2014. Akakundawo Ricardo Zamora Trophy nokuda kwakanakisisa muchengeti wemagariro muLa Liga, nokuda kwekushanda kwake mumwaka wake miviri yekupedzisira. Courtois akadzokera kuChelsea muna Chikunguru 2014, uye mumwaka wake wekutanga akavabatsira kuhwina mukombe weLigi uye mukombe wePremier League. Makore maviri gare gare, akahwina Premier League Golden Glove sezvo Chelsea zvakare yakakunda ligi. Muna 2018, Real Madrid yakasaina Courtois pamadhora makumi matatu nemashanu emamiriyoni, ichiva muchengeti wemagariro anodhura kwazvo muLa Liga, achipfuura rekodhi yakagadzwa naJan Oblak. Akakunda mukombe wechipiri weLa Liga uye mukombe wechitatu weZamora muna 2020.