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FA Cup Numbers
First Round
1-48 assigned to L1, L2 clubs, who are sorted into alphabetically order. So Accrington Stanley number 1, Yeovil 48.
Matches in Qualifiers are numbered, so Wrexham v Bognor Regis may have been number 1 (first tie drawn out in qualifying round). They are assigned 49. Match 2 50, Match 3 51 etc etc
So, let's say Accrington Stanley v Wrexham is the 18th match drawn in Round 1, the winners are given ball 18 in Round 2.
Round 3. 1-44 given to the Prem,Champ clubs in alphabetical order. So AFC Bournemouth are 1, Wolves are 44. Numbers 45-64 are given to games 1-20 (in that order) from Round 2.