Event: Division Four

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Opponent Rating Result
John Lunn 1564 ½ - ½
Robert Georgel Grozea 1790 0 - 1
Liam O'Connor 1525 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1493 = (4879 + 400 * (0 - 1)) / 3)

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