Event: MCA Division 3

Opponent Rating Result
Chris Latham 1777 0 - 1
David snr Stanfield 1628 0 - 1
Ben Gannon 1426 ½ - ½
B Wilson 1437 1 - 0
David McKee 1497 0 - 1
Ben Gannon 1426 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1399 = (9191 + 400 * (1 - 3)) / 6)

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