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Event: Five Counties Div 2

Opponent Rating Result
Adrian Bailey 1707 0 - 1
Asoke K Nandi 1470 0 - 1
Sailesh Shah 1170 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1316 = (4347 + 400 * (1 - 2)) / 3)

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