Event: 2021 Jamboree

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Opponent Rating Result
Antony Austin 1345 0 - 1
Andrew Millborrow 1323 0 - 1
David JW Smith 1315 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1194 = (3983 + 400 * (1 - 2)) / 3)

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