Event: Norfolk County Chess Championships- Challengers

Opponent Rating Result
Graham K Blowers 1723 ½ - ½
Steve Sanders 1600 ½ - ½
Sharvari Saharkar 1550 1 - 0
Larysa Klepikovska 1506 1 - 0
John F Weston 1585 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1753 = (7964 + 400 * (2 - 0)) / 5)

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