Event: 4-Board Division 1

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Opponent Rating Result
David E Lord 1916 ½ - ½
Edward S Oxley 1750 1 - 0
Benedikt Pitel 1780 0 - 1
Andrew D Bettley 1775 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1805 = (7221 + 400 * (1 - 1)) / 4)

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