Event: Siminson Cup 23

Opponent Rating Result
Frank Usher 1550 0 - 1
Bob Wallace 1408 1 - 0
Bob Wallace 1408 0 - 1
Don Richards 1398 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1341 = (5764 + 400 * (1 - 2)) / 4)

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