Event: SASCA Rapidplay

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Opponent Rating Result
Tom Key 1630 0 - 1
Sam Thompson 925 0 - 1
Zahra Ali 0 1 - 0
Neil Ladva 1090 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

711 = (3645 + 400 * (1 - 3)) / 4)

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