Event: Club Championship

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Opponent Rating Result
Martin Newton 1384 0 - 1
Peter Holman 1543 ½ - ½
Ash Keatley 1401 0 - 1
Voitek Martynowicz 1580 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1177 = (5908 + 400 * (0 - 3)) / 4)

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