Event: Ramsgate Siminson Cup 21

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Opponent	Rating	Result
Paul Worledge	1714	0 - 1
Brian J Westover	0	0 - 1
Brian W Williamson	1310	1 - 0
Sam Feuillatre	1314	0 - 1
Brian J Westover	1911	0 - 1
Sam Feuillatre	1314	½ - ½
Paul Worledge	1714	0 - 1
Frank Usher	1473	½ - ½

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

1144 = (10750 + 400 * (1 - 5)) / 8)