Event: Derby & District Division 3

Opponent Rating Result
John E Fryer 1490 1 - 0
Keith Walsh 1622 ½ - ½
Jonathon Swift 1520 1 - 0
Michael Oakley 1542 1 - 0
Andre Cockburn 1533 0 - 1
Paul Kelman 1605 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1752 = (9312 + 400 * (4 - 1)) / 6)

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