Event: Division 1

Opponent Rating Result
John K Holliday 1674 ½ - ½
Rik Panesar 0 1 - 0
Elinor Gorrell 1724 1 - 0
Vivien Webster 137 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1084 = (3535 + 400 * (2 - 0)) / 4)

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