Event: City Chess Swiss 2019-20

Opponent Rating Result
Keith S Jones 1840 ½ - ½
Luis Ortiz Sanchez 0 0 - 1
Anthony GC Paish 0 ½ - ½
D Ian W Reynolds 0 1 - 0
David Hassine 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

448 = (1840 + 400 * (2 - 1)) / 5)

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