Event: Derby & District Division 3

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Opponent Rating Result
Philip Sheldon 1614 1 - 0
Pietro Giusto 1506 1 - 0
George K Heath 1482 1 - 0
Jack Austin 1522 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1931 = (6124 + 400 * (4 - 0)) / 4)

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Opponent Rating Result
Garry Sands 1542 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1142 = (1542 + 400 * (0 - 1)) / 1)