Event: Division 3

Opponent Rating Result
Jack Austen-Vincent 1528 0 - 1
Michael I Williams 1717 ½ - ½
Joe W Butterworth 1633 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1359 = (4878 + 400 * (0 - 2)) / 3)

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