Event: Camberley Chess Club Championship 2023

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Opponent	Rating	Result
Brian Rushby	1278	1 - 0
Robert Smith	1494	1 - 0
Paul Sloane	2086	0 - 1
Sebastian Twisk	1799	½ - ½
Mark Payne	1815	½ - ½

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

1774 = (8472 + 400 * (2 - 1)) / 5)