Event: D&DCL Div 3

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Opponent	Rating	Result
Lee Garratt	1393	0 - 1
Oliver Cureton	1261	0 - 1
Mohinderpal Samra	1379	1 - 0
Dudley Thorpe	1344	1 - 0
Richard Dawson	1559	1 - 0
Chris Lovell	1680	0 - 1
Nigel D Marshall	1492	½ - ½
J Martin Gibson	1123	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1454 = (11231 + 400 * (4 - 3)) / 8)