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Nottinghamshire Chess Association
2019/20
Division 1
Event: Division 1
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Excel
Opponent
Rating
Result
Janos J Wagenbach
138
1 - 0
Florian Biermann
170
0 - 1
Steve Hunter
159
0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games
22 = (467 + 400 * (1 - 2)) / 3)
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