Event: Division 2

Opponent Rating Result
Philip J Cattermole 152 0 - 1
Joseph P Alcock 113 1 - 0
Harry Gardiner 131 1 - 0
Anthony RW Brough 133 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

132 = (529 + 400 * (2 - 2)) / 4)

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