Event: Ramsgate U100

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Opponent	Rating	Result
Don Richards	1362	1 - 0
Brian W Williamson	1310	1 - 0
John L Clarke	1329	0 - 1
Christopher Exton	1090	1 - 0
Don Richards	1362	½ - ½
Roy J McAloney	1324	0 - 1
Roy J McAloney	1324	1 - 0
John L Clarke	1329	0 - 1
Christopher Exton	1090	1 - 0
Brian W Williamson	1310	1 - 0

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

1403 = (12830 + 400 * (6 - 3)) / 10)