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North Gloucestershire Chess Association
2017 season
Dave Nicholas Summer League
Event: Dave Nicholas Summer League
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Excel
Opponent
Rating
Result
Alun Richards
151
0 - 1
Rob E Wilden
138
0 - 1
Alun Richards
151
0 - 1
Rob E Wilden
138
0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-256 = (578 + 400 * (0 - 4)) / 4)
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