Event: Division 2

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Opponent Rating Result
Geoffrey P Taylor 117 1 - 0
Martin R Banfield 118 1 - 0
Peter R Bending 119 1 - 0
Ian Webster 0 1 - 0
Ian P Blencowe 131 1 - 0
Ken A Parker 101 1 - 0
Adrian Walker 142 0 - 1
Alex Hope 126 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

407 = (854 + 400 * (7 - 1)) / 8)

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Opponent Rating Result
Ian P Blencowe 131 0 - 1
Ian Webster 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-135 = (131 + 400 * (0 - 1)) / 2)