Event: Open Rapid-play

Opponent Rating Result
Ioan Rees 2320 1 - 0
Cory S Hazlehurst 2074 1 - 0
Athar Ansari 2100 0 - 1
Ioan Rees 2320 0 - 1
Cory S Hazlehurst 2074 0 - 1
Athar Ansari 2100 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2098 = (12988 + 400 * (2 - 3)) / 6)

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