Event: KO 2021-22

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Opponent	Rating	Result
Roger Waddingham	1480	1 - 0
Guy Turvey	1425	1 - 0
James C Mansson	2107	0 - 1

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

1804 = (5012 + 400 * (2 - 1)) / 3)