U19 world champion was Yip Kin Ling from Hong Kong as the first player in his country . In the final against his compatriot Robbie Capito , he beat last year's finalists 11:10. In the U17 age group, Mahkeal Parris was the first American world champion. He won the final against the Norwegian Emil Andre Gangfløt 9: 6. In the juniors category, Taiwanese Chen Chia-hua secured her second world title after 2016 with a 9-5 win over South Korean Seo Seoa .
The defending champions were Sanjin Pehlivanović (U17), Fjodor Gorst (U19) and Kristina Tkatsch (juniors). Gorst was the only winner from last year to compete again in the same age group. While Pehlivanović was now playing in the U19 category, Tkatsch was no longer eligible to participate due to age.
All three competitions were initially played in the double knockout system and then continued in the knockout system . In the two age groups of the juniors, the 24 participants competed against each other up to the quarter-finals in a double knockout mode, while the knockout phase of the junior women competition with 16 participants began with the semi-finals. Alternating break was used in all competitions. When kicking off, the one was built on the base and the three-point rule applied.
Mahkeal Parris
Yip Kin Ling
Chen Chia-hua
Christoffer Lentz
Dennis Laszkowski
Emil Andre Gangfløt
Artem Lukin
Fifths pongers
Kristián Mrva
Wiktor Zieliński
Andrés Aguilar
My Nguyen
Seo Seoa