Event: OTB Aug 10 + 5 Rapid

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Opponent Rating Result
Zain Qureshi 1363 0 - 1
James Walsh 1245 0 - 1
A Fin O'Regan 1012 1 - 0
Adarsh Bedi 1150 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

993 = (4770 + 400 * (1 - 3)) / 4)

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