Event: U1800 Cup

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Opponent Rating Result
John WF McAllister 1743 1 - 0
Robert W Stephens 1788 1 - 0
Les J Jones 1728 1 - 0
Judith Heffer 1728 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2047 = (6987 + 400 * (3 - 0)) / 4)

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