Event: 2023 Manx Championship

Opponent Rating Result
Samuel Sipos 1200 1 - 0
Silvester Sipos 1941 0 - 1
Benjamin Roobottom 1533 0 - 1
Owen Sweeney 1500 ½ - ½
Paul Smith 1719 1 - 0
John Costello 1797 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1615 = (9690 + 400 * (2 - 2)) / 6)

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