Event: Club Championship B

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Opponent	Rating	Result
Jon Hunt	1501	0 - 1
Richard Parkinson	1192	1 - 0
Michael Brian Harrison	0	1 - 0
Michael J Davies	1317	1 - 0(def)
Daniel Watkins	1263	1 - 0(def)
Samson Ghasemi	1524	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1254 = (4217 + 400 * (3 - 1)) / 4)