Event: Open-Rapid-play

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Opponent Rating Result
Athar Ansari 2117 1 - 0
Henrik Stepanyan 2304 ½ - ½
Matthew J Harborne 2147 0 - 1
Henrik Stepanyan 2304 ½ - ½
Matthew J Harborne 2147 0 - 1
Athar Ansari 2117 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2056 = (13136 + 400 * (1 - 3)) / 6)

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