Event: Lawrance Cup 2021-22

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Opponent	Rating	Result
Peter Jaszkiwskyj	1975	½ - ½
Peter Jaszkiwskyj	1975	1 - 0

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

2175 = (3950 + 400 * (1 - 0)) / 2)