Event: Billingham Synthonia Chess Club August 2024 Rapid

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Opponent	Rating	Result
Dermot O'Higgins	1602	0 - 1
Bernie Callaghan	1472	1 - 0
John Marsden	1438	0 - 1

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

1371 = (4512 + 400 * (1 - 2)) / 3)