Event: Division 3

Opponent Rating Result
David M Cotterell 1603 0 - 1
Alex Kagkalis 1579 1 - 0
Sam Hughes 1606 ½ - ½
Mark Tangri 1558 ½ - ½
Alex Kagkalis 1588 0 - 1
Richard Evans 1600 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1522 = (9534 + 400 * (1 - 2)) / 6)

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