Event: Division 2

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Opponent Rating Result
Adrian Cload 1620 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2020 = (1620 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Susan E Chadwick 1478 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1478 = (1478 + 400 * (0 - 0)) / 1)