Event: Division 2

Opponent Rating Result
Herbert Lockwood 133 0 - 1
Paul Salisbury 130 ½ - ½
Howard Brears 122 1 - 0
Robert A Maltby 139 1 - 0
Paul W Jones 0 ½ - ½
Colin Weller 122 1 - 0
Neville R Pearce 133 1 - 0
Daniel W Hill 147 0 - 1
Cassius Livingstone 105 ½ - ½
David L Pedro 145 ½ - ½
Paul Gelder 121 ½ - ½
Daniel W Hill 147 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

220 = (1444 + 400 * (5 - 2)) / 12)

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