Event: Northamptonshire Silver King League Division 2

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Opponent	Rating	Result
Joshua Stojkovic	1512	1 - 0
Jim Sorrie	1599	½ - ½
Rene Butler	1367	1 - 0
Benjamin Hodgkiss	1493	0 - 1
Ioan Strugar	1610	1 - 0
Ioan Strugar	1632	0 - 1
Bryan Geary	1418	1 - 0
Sachin Kalra	1597	½ - ½

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

1629 = (12228 + 400 * (4 - 2)) / 8)