Event: Division 1

Opponent Rating Result
Andrew Hargreaves 154 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

154 = (154 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Frank Talton 0 1 - 0
Jonathan Howarth 0 1 - 0
Phil M Taylor 150 ½ - ½
Andrew Hargreaves 154 ½ - ½
Paul Smith 0 1 - 0
Keith Jones 0 1 - 0
Jonathan Howarth 0 ½ - ½
George Markovic 150 1 - 0
Brian Smith 0 ½ - ½
Paul Smith 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

285 = (454 + 400 * (6 - 0)) / 10)