Event: MCA Division 4

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Opponent Rating Result
John Lawton 1488 ½ - ½
Tom Bates 0 1 - 0
Iain Smith 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

763 = (1488 + 400 * (2 - 0)) / 3)

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Opponent Rating Result
Leo Chamberlain 0 0 - 1
Rob Haseman 1432 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

316 = (1432 + 400 * (0 - 2)) / 2)