Event: 2nd Cornwalll Autumn Minor

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Opponent Rating Result
Hazel Welch 1260 1 - 0
Anthony Tatam 1540 0 - 1
Tony Lopez 1370 0 - 1
Rafferty Renshaw 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

843 = (4170 + 400 * (1 - 3)) / 4)

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