Event: City Chess League 2021-22

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Opponent	Rating	Result
Antony C Hall	1855	0 - 1
Alberto Pambira	1600	½ - ½
Bertrand A Barlow	1998	½ - ½

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

1684 = (5453 + 400 * (0 - 1)) / 3)