Event: Division C

Opponent Rating Result
Patrick N Coleman 108 0 - 1
Colin Wilks 102 ½ - ½
Paul Worsley 110 0 - 1
Patrick N Coleman 108 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-193 = (428 + 400 * (0 - 3)) / 4)

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