Event: Division 2

Opponent Rating Result
Peter Smith 1417 1 - 0
Peter A Brander 1509 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1863 = (2926 + 400 * (2 - 0)) / 2)

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Opponent Rating Result
Grace Wilde 1600 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1200 = (1600 + 400 * (0 - 1)) / 1)