Event: Siminson Cup 24

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Opponent	Rating	Result
Brian J Westover	1742	0 - 1
Christopher Exton	1112	1 - 0
Roy J McAloney	1401	1 - 0
Paul Worledge	1806	0 - 1
Graham Wilson	1097	1 - 0
John L Clarke	1342	1 - 0
Christopher Exton	1112	0 - 1

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

1430 = (9612 + 400 * (4 - 3)) / 7)