Event: 4th Cornwall Spring Major

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Opponent Rating Result
James H Galloway 1588 0 - 1
Michael Hill 1678 1 - 0
Richard Humpleby 1495 1 - 0
Michael H Stinton-Brownbridge 1843 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1651 = (6604 + 400 * (2 - 2)) / 4)

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