Event: Harrogate Evening League 2022 season

Opponent Rating Result
William Boothman 1785 1 - 0
Paul Butterworth 1792 0 - 1
Peter Gregory 1564 0 - 1
John Swiers 1372 0 - 1
Charlie Wainwright 1516 ½ - ½
Jim R Postill 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1138 = (8029 + 400 * (1 - 4)) / 6)

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