Event: Division Two

Opponent Rating Result
Patryk Stanisz 201 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-199 = (201 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Edward Goldman 0 1 - 0
Ed Stembridge 159 0 - 1
Vishnu Kirupakaran 171 0 - 1
Keith Parker 147 ½ - ½
Tim M Joslin 164 0 - 1
H Michael Lamb 166 ½ - ½
Luke King 0 1 - 0
Jeremy Law 161 0 - 1
Noel M Stewart 144 1 - 0
Ronnie Cohen 152 0 - 1
Robin Lee 105 1 - 0
Amar Virk 107 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

123 = (1476 + 400 * (5 - 5)) / 12)