Event: Division 4

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Opponent Rating Result
John Tassi 1615 0 - 1
Richard Dyce 1460 0 - 1
Charlie Carr 1090 0 - 1
Tomasz Szymula 1552 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1029 = (5717 + 400 * (0 - 4)) / 4)

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