Event: Billingham Synthonia Rapid February 2024

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Opponent	Rating	Result
Graham E Edwards	1386	1 - 0
Harry Tennant	1540	½ - ½
Peter Harker	1779	0 - 1

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

1568 = (4705 + 400 * (1 - 1)) / 3)