Event: NCCA League Division 3

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Opponent Rating Result
Martin Griffin 1472 0 - 1
Gregory P Sargent 1545 0 - 1
Gerry Clayton 1468 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1228 = (4485 + 400 * (0 - 2)) / 3)

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