Event: Hebden Bridge Chess Club Championship 2023

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Opponent	Rating	Result
Adam Smith	1600	1 - 0
David C Wedge	1865	½ - ½
Michael Ward	0	0 - 1
Jeremy Butts	1717	1 - 0
Phil Cook	2110	1 - 0

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

1618 = (7292 + 400 * (3 - 1)) / 5)