Event: Hillingdon Div 3

Opponent Rating Result
Jagat Singh 1493 1 - 0
David Housego 1357 1 - 0
Ron Lawrence 1399 1 - 0
Ivor Doherty 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1462 = (4249 + 400 * (4 - 0)) / 4)

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