Event: NSDCA Division 4

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Opponent Rating Result
Roger Coleman 1241 0 - 1
S Ali Arshad 1231 1 - 0
Dihain Heenatigala Kanaththage 491 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1121 = (2963 + 400 * (2 - 1)) / 3)

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