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Birmingham & District Chess League
2017/18
Division Three
Event: Division Three
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Excel
Opponent
Rating
Result
Conrad E Green
146
0 - 1
Brian D Hopkins
122
½ - ½
Ionut Florin Valea
116
0 - 1
Robin A Anderton
117
½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games
-75 = (501 + 400 * (0 - 2)) / 4)
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