Event: Lawrance Cup 2021-22

Opponent Rating Result
Peter Jaszkiwskyj 1985 ½ - ½
Peter Jaszkiwskyj 1985 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1785 = (3970 + 400 * (0 - 1)) / 2)

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