Event: NSDCA Division 4

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Opponent Rating Result
S Ali Arshad 1231 ½ - ½
Jay Swann 1272 1 - 0
Shanoth Edirimuni 537 1 - 0
Gerald Parton 1158 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1150 = (4198 + 400 * (2 - 1)) / 4)

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