Event: D&DCL Div 2

Opponent Rating Result
Martin Cobham 1790 0 - 1
D Philip Morgan 1717 0 - 1
George K Heath 1669 ½ - ½
Rob Fursman 1771 0 - 1
Mike P Maher 1629 ½ - ½
Isaac Cheale 1730 0 - 1
Richard P Temple 1578 1 - 0
Paul Kelman 1593 0 - 1
Justin Smith 1736 0 - 1
Owen Dale 1663 1 - 0
Chris A Fraser 1559 1 - 0
John E Fryer 1490 0 - 1
Justin Smith 1749 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1575 = (21674 + 400 * (4 - 7)) / 13)

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