Event: Derbyshire Individual

Opponent Rating Result
Michael D Boreham 130 ½ - ½
Nigel D Marshall 115 ½ - ½
Shane Bhayat 162 0 - 1
Saurav Sunny 136 0 - 1
Jon Jenson 106 1 - 0
David Williams 162 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2 = (811 + 400 * (1 - 3)) / 6)

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