Event: Division 2

Opponent Rating Result
Ioannis Stefanis 1275 1 - 0
David Hulme 1822 ½ - ½
Kevin J Spillane 1679 0 - 1
Kenneth J McNulty 1698 1 - 0
Roger Bray 1530 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1761 = (8004 + 400 * (3 - 1)) / 5)

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