Event: Norfolk County Chess Championships- Challengers

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Opponent Rating Result
Armando Galletti 1675 0 - 1
Heather Enid Walker 1200 1 - 0
Chris Flynn 1609 1 - 0
Arthur Dannatt 1582 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1517 = (6066 + 400 * (2 - 2)) / 4)

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