Event: OTB RuleOf6-13Jul-A

Opponent Rating Result
Mark RA Murrell 1960 1 - 0
Terry D Whitton 1897 1 - 0
Ian D Hunnable 2014 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2224 = (5871 + 400 * (2 - 0)) / 3)

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