Event: Division 3 West

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Opponent Rating Result
W John Parsons 105 0 - 1
Barry Thornley 95 1 - 0
Michael J Ward 90 1 - 0
Michael J Ward 90 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

95 = (380 + 400 * (2 - 2)) / 4)

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