Event: Norfolk County Chess Championships- Challengers

Opponent Rating Result
Stephen Livermore 1657 0 - 1
Sharvari Saharkar 1126 1 - 0
Colin R Payne 1655 0 - 1
John F Weston 1598 ½ - ½
Chris Flynn 1609 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1449 = (7645 + 400 * (1 - 2)) / 5)

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