Kammala jumla mai zuwa: A cikin kakar wasan snooker na 2017-18, an fitar da Selby a zagaye na farko na Masters na Hong Kong bayan shan kashi 3<unk>5 ga zakara mai zuwa Neil Robertson. Gasarsa ta farko a wannan kakar ita ce Gasar Cin Kofin China inda Zhou Yuelong ya doke shi 4 × 5 a zagaye na biyu. Ya kasa ci gaba da zagaye na huɗu na Paul Hunter Classic don kare taken sa, ya rasa 1<unk>4 ga zakara Michael White. An doke shi 2<unk>5 daga Lee Walker a zagaye na farko na Open Open, wanda ya biyo bayan shan kashi 2<unk>4 ga Stuart Bingham a wasan kusa da na karshe na gasar.
Masters na Turai, da kuma zagaye na uku a Ingila inda ya rasa 1<unk>4 zuwa Xiao Guodong.