Event: Division 4

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Opponent Rating Result
Stephen Rumsby 1600 0 - 1
Nigel Morris 1611 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1406 = (3211 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Nick Cutler 1500 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1100 = (1500 + 400 * (0 - 1)) / 1)