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Castle was known as "Billy Joe" for some years but if now plain "Billy". Based on snooker.org it seems that this happened at the start of the 2020/21 season. See discussion at WT:SNOOKER#Billy (Joe) Castle. Per WP:DONOTFIXIT please leave earlier links as Billy Joe, the name he was known as at that time. Nigej (talk) 09:47, 18 February 2023 (UTC)[reply]