as absentees from Round 1 and we will adjust the pairings if time permits, they still can join from Round 2. As indicated by the rules, players absent for two rounds will be disqualified from the event.
If all 57 players present, I have the feeling that your prediction of pairing (蔡俊杰vs廖铭濠) is wrong.
By the way, for the coming competition, all 57 players are considered as individuals, we will not do any adjustment if there are pairings within same clubs or schools etc. This is the reason that we may use the age in descending order to number the records since all are players without grades.
In 2006, there were 7 graded players and we numbered them from No. 1 to No. 7 before any pairing so that they will not meet, say in the first few rounds.