Event: City Chess Swiss 2022-23

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Opponent	Rating	Result
Ray P Hamilton	1482	0 - 1
Edward Pease	0	1 - 0
Antonio Cordova	1465	0 - 1

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

849 = (2947 + 400 * (1 - 2)) / 3)