Event: Examiner League

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Opponent Rating Result
Mark Rojinsky 1467 ½ - ½
Peter G Moss 1597 1 - 0
Sean Keddie 0 0 - 1
Jacob A Westmoreland 1353 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1204 = (4417 + 400 * (2 - 1)) / 4)

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