By the 2016/17 season, Chapman-Davies had an impressive season. He competed in the World Cup circuit, making two final appearances in Ruka, Finland and Val St Come, Canada, and placing 9th in Tazawako dual moguls in Japan. These results qualified him for his World Championship debut at Sierra Nevada 2017. He placed 15th in the singles mogul event. However, due to an unfortunate crash in the training at the 2017 World Championships, Chapman-Davies had to undergo shoulder reconstruction surgery in March that year.