Event: Division Four

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Opponent Rating Result
Dominic P Heining 1692 1 - 0
Ken Wise 1490 ½ - ½
Richard Wilkinson 1594 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1592 = (4776 + 400 * (1 - 1)) / 3)

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