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Birmingham & District Chess League
2018/19
Division Six
Event: Division Six
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Excel
Opponent
Rating
Result
Ian A Clack
105
0 - 1
Ismail Vuran
62
1 - 0
David H Watkin
0
0 - 1
Alan Merritt
59
1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games
57 = (226 + 400 * (2 - 2)) / 4)
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