Event: Roger Goldsmith Div 1

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Opponent	Rating	Result
Benjamin Varea	1499	½ - ½
Alan Wadsworth	1709	½ - ½
Robert L Jones	1672	1 - 0

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

1760 = (4880 + 400 * (1 - 0)) / 3)