Event: Division 2

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Opponent Rating Result
Mark Oakden 1559 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1159 = (1559 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
David Harrington 1500 1 - 0
Warwick Estlea 1479 0 - 1
Peter A Brander 1514 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1498 = (4493 + 400 * (1 - 1)) / 3)