Event: Under 100

Opponent Rating Result
Christopher Exton 1112 1 - 0
Roy J McAloney 1401 0 - 1
Don Richards 1360 ½ - ½
Bob Wallace 1385 ½ - ½
Christopher Exton 1112 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1354 = (6370 + 400 * (2 - 1)) / 5)

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