Event: D Division

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Opponent Rating Result
Paul H Czyrski 1321 0 - 1
Parshottambhi D Patel 1339 ½ - ½
James Morris 1457 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1372 = (4117 + 400 * (1 - 1)) / 3)

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