Event: Division Two

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Opponent Rating Result
Robert Broadbent 157 0 - 1
William Boothman 147 1 - 0
Pete Redmond 159 0 - 1
Anna Szasz 139 ½ - ½
Richard Porter 157 ½ - ½
Jimmy Choo 0 0 - 1
Richard L Bowman 157 ½ - ½
Robert Broadbent 157 0 - 1
Richard L Bowman 157 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

48 = (1230 + 400 * (2 - 4)) / 9)

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