Event: NSDCA Division 2

Opponent Rating Result
John P Ewens 1933 ½ - ½
Greg Cannon 1800 0 - 1
Steve R Hill 1821 ½ - ½
Cyrus Pereira 1937 ½ - ½
Karl Lockett 1785 0 - 1
Tim Twentyman 1731 ½ - ½
Malcolm A Roberts 1671 1 - 0
Greg Cannon 1950 ½ - ½
Steve R Hill 1867 ½ - ½
David I Hulme 1750 1 - 0
Karol Grzybowski 1783 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1821 = (20028 + 400 * (2 - 2)) / 11)

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