Event: 6-Board Division 1

Opponent Rating Result
Andrew D Bettley 1803 ½ - ½
Jonathan R Slater 1716 0(def) - 1
Phil Bawden 1743 ½ - ½
Thomas L Hackett 1865 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1670 = (5411 + 400 * (0 - 1)) / 3)

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