Event: Ribbands Rapidplay

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Opponent	Rating	Result
Chris Davison	2027	0 - 1
Konrad Scheffler	1987	1 - 0
James A Briginshaw	1800	1 - 0
Alan Richardson	1934	½ - ½
Paul McMahon	1929	0 - 1
Michael MJ Osborn	1479	½ - ½
Alan Wadsworth	1500	½ - ½
Paul McMahon	1919	1 - 0
Benjamin Varea	1423	1 - 0
Vikram K Banerjee	1488	1 - 0

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

1869 = (17486 + 400 * (5 - 2)) / 10)