Event: HDCA Online Team Competition

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Opponent Rating Result
Steve Donoghue 0 ½ - ½
Peter T Perkins 1636 ½ - ½
David Stothard 0 0 - 1
Steve Donoghue 1279 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

729 = (2915 + 400 * (1 - 1)) / 4)

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