Event: Iceni Live Classic 4 Open

Opponent Rating Result
Alan Wadsworth 1746 ½ - ½
George Horan 1854 0 - 1
David J Payne 1765 1 - 0
Paul P Smith 0 0 - 1
Neil Greenwood 1780 ½ - ½
Mark Szymanski 1786 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1355 = (8931 + 400 * (1 - 3)) / 6)

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