Event: Essex OL U1500 Championship

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Opponent Rating Result
Rostislav Kovalev 900 1 - 0
Nigel White 1390 0(def) - 1
Peter Kukiewicz 1143 0 - 1
Ishita Singh 1124 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

922 = (3167 + 400 * (1 - 2)) / 3)

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