Event: Division One

Opponent Rating Result
Kevin Hurney 2061 ½ - ½
Raymond Carpenter 1898 ½ - ½
Joshua Pink 1988 0 - 1
Tony Preece 1878 0 - 1
Thomas Wills 2148 ½ - ½
Dave M Davies 1692 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1878 = (11665 + 400 * (1 - 2)) / 6)

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