Event: 6-Board Division 2

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Opponent	Rating	Result
Sean Smith	1528	0 - 1
Jonathan R Slater	1300	0 - 1
Dan Malbon	1300	½ - ½
Steve Tomlinson	1449	1 - 0
Neil Hambly	1537	0 - 1
Colin W Field	1458	0 - 1
Dave M Cooper	1448	½ - ½
Graham Lee	1546	0 - 1
Ewan Black	1528	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1233 = (13094 + 400 * (1 - 6)) / 9)