Event: Billingham Synthonia Chess Club May 2023 Rapid

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Opponent	Rating	Result
Arthur Stead	920	½ - ½
Paul Scott	1307	1 - 0
Gary Leighton	1287	1 - 0

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

1438 = (3514 + 400 * (2 - 0)) / 3)