Event: SCL Div 3

Opponent Rating Result
Ralph Morley 1625 0 - 1
Philip Tarrant-Edwards 1594 ½ - ½
Sam J Murphy 1562 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1460 = (4781 + 400 * (0 - 1)) / 3)

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