Event: Division 3

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Opponent Rating Result
Mick J Lloyd 1400 0 - 1
Marc Carter 1055 1 - 0
David I Buckley 1245 0 - 1
Brian Jones 1168 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1217 = (4868 + 400 * (2 - 2)) / 4)

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