Event: ChAMPS Online RapidPlay 05/07/21

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Opponent	Rating	Result
Kunal Das	1531	0 - 1
Barbara Farrar	938	1 - 0
David Stuttard	1500	1 - 0

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

1456 = (3969 + 400 * (2 - 1)) / 3)