Event: KO 2022-23

Opponent Rating Result
James C Mansson 2085 0 - 1
David Gray 1084 1 - 0
Alexander Parker 1272 1 - 0
Peter Rankin 1664 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1526 = (6105 + 400 * (2 - 2)) / 4)

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