Event: Division 1

Opponent Rating Result
Michael Jackson 1872 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1472 = (1872 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Rupert W Jones 1801 0 - 1
Neville R Pearce 1693 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1347 = (3494 + 400 * (0 - 2)) / 2)