Event: Hillingdon Div 2

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Opponent	Rating	Result
Anthony Braine	1715	0 - 1
Darsh Santosh Kumar	1555	½ - ½
Pasquale Vacirca	0	½ - ½
Ivor Doherty	1421	1 - 0
Alastair G Johnstone	1596	1 - 0
David JR Walker	1229	1 - 0
Shlok Parakh	1612	0 - 1

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

1361 = (9128 + 400 * (3 - 2)) / 7)