Event: SCL Div 2

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Opponent Rating Result
Eric M Jones 1758 ½ - ½
Philip Tarrant-Edwards 1591 0 - 1
Martin GS Buckley 1969 ½ - ½
Dave J Elliott 1709 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1557 = (7027 + 400 * (0 - 2)) / 4)

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