Event: Rapidplay - Under 7000

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Opponent Rating Result
Arthur Doble 1431 0 - 1
Arthur Doble 1431 0 - 1
Simon Howard 1370 ½ - ½
Simon Howard 1370 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1301 = (5602 + 400 * (1 - 2)) / 4)

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