Event: Division One

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Opponent Rating Result
John D Wager 2046 ½ - ½
Stephen B James 1952 0 - 1
Hussien Mohamed 1946 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1715 = (5944 + 400 * (0 - 2)) / 3)

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