Wikipedia is currently on 57
Wikipedia is right. 57 centuries have been made so far.
I just checked the spreadsheet and I see you haven't counted the century made by Liu Hongyu in his first round match against Judd Trump. that's why you are on 56 centuries instead of 57 which is reported by Wikipedia.
Thanks, that saved me some time if we end right on the line.
It is Round 2 as I have been doing it, but Round 1 was a strange one, kind of late qualifiers so I am not surprised some sites are numbering them differently.