Event: OL Swiss (10 + 5) Easter Rapid

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Opponent	Rating	Result
Laurence Duffy	0	1 - 0
David Spearman	2018	0 - 1
Nandi Korossy	1593	½ - ½

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

1204 = (3611 + 400 * (1 - 1)) / 3)