Event: Derbyshire Individual

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Opponent Rating Result
John C Tompson 0 0 - 1
Herbert TT Loomes 0 1 - 0
Michael D Boreham 0 1 - 0
Andrew Toothill 0 0 - 1
Edward T Bromilow 0 1 - 0
Stuart Marshall 0 ½ - ½
Maurice J Hill 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

114 = (0 + 400 * (4 - 2)) / 7)

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