Event: West of England Counties Online Championship

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Opponent	Rating	Result
Kevin D Markey	1466	1 - 0
Jason Henderson	1680	1 - 0
Martyn J Maber	1200	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1715 = (4346 + 400 * (2 - 0)) / 3)