Event: Division 3 West

Opponent Rating Result
Martin R Fields 109 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

109 = (109 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Shaun Taylor 37 1 - 0
Antony Austin 77 1 - 0
Victor McAndrew 74 0 - 1
Shaun Taylor 37 1 - 0
Martyn J Maber 122 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

149 = (347 + 400 * (3 - 2)) / 5)