Event: Rapidplay Rally (August)

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Opponent Rating Result
Lenny Horn 1022 1 - 0
Judith Heffer 1875 0 - 1
Mark Heffer 1663 0 - 1
Danny Harrison 1795 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1389 = (6355 + 400 * (1 - 3)) / 4)

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