Event: Rated Friendlies - 23/24

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Opponent Rating Result
John E Davis 1397 1 - 0
Peter R Lasham 1333 1 - 0
Alikhan Menseitov 1569 0 - 1
Peter R Lasham 1331 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1608 = (5630 + 400 * (3 - 1)) / 4)

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