Event: Division 2

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Opponent Rating Result
Ermi Preza 1159 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1559 = (1159 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Amanda Littler 1123 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1523 = (1123 + 400 * (1 - 0)) / 1)

Opponent Rating Result
Donna Chadwick 1297 1 - 0
Tyler Sweeney 0 ½ - ½
Ibrahim Riaz 1113 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1070 = (2410 + 400 * (2 - 0)) / 3)