Event: Siminson Cup 24

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Opponent	Rating	Result
Velibor Milovanovic	1556	0 - 1
Christopher Exton	1112	1 - 0
Don Richards	1360	0 - 1
Brian W Williamson	1396	½ - ½
Roy J McAloney	1401	0 - 1
Brian J Westover	1742	0 - 1
Roy J McAloney	1401	1 - 0

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

1310 = (9968 + 400 * (2 - 4)) / 7)