Event: 4-Board Division 1

Opponent Rating Result
Joe Varley 2033 0 - 1
Paul SN Kendall 1912 ½ - ½
Keith Porteous 1673 1 - 0
Joe Varley 2033 0 - 1
Derek A Sheppard 1715 ½ - ½
Stephen Crow 1840 0 - 1
John E Sugden 1523 1 - 0
Tim M Turner 1884 ½ - ½
Stephen Crow 1840 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1739 = (16453 + 400 * (2 - 4)) / 9)

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