Event: AG Sunderland

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Opponent	Rating	Result
David Kilmartin	1516	1 - 0
Paul A Allison	1705	½ - ½
Noah Helme	1607	1 - 0

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

1876 = (4828 + 400 * (2 - 0)) / 3)