Event: September 2022 Rapid

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Opponent	Rating	Result
Bill Wilson	1914	0 - 1
Fraser Craig	0	1 - 0
Geoffrey Howsden	1556	½ - ½

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

1157 = (3470 + 400 * (1 - 1)) / 3)