Event: Minor KO 2021/22

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Opponent Rating Result
Andrew N Chapman 1857 ½ - ½
Michael J Passmore 1657 ½ - ½
Kevin D Langmaid 1552 1 - 0
Sebastian Skalski 1563 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1657 = (6629 + 400 * (1 - 1)) / 4)

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