Event: Summer League Division 4

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Opponent Rating Result
Xiaorui Wang 1464 0 - 1
Benjamin Layton 0 1 - 0
Mohammed Arshid 1519 1 - 0
John M Oughton 1255 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1160 = (4238 + 400 * (2 - 1)) / 4)

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