Event: Division 1 - Open

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Opponent	Rating	Result
H William Ingham	1926	½ - ½
Steven J Levy	2093	0 - 1
Alan W Brusey	1966	1 - 0
Keith C Arkell	2390	0 - 1
H William Ingham	1926	½ - ½
Alan W Brusey	1966	½ - ½
Steven J Levy	2093	0 - 1
Keith C Arkell	2390	0 - 1

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

1944 = (16750 + 400 * (1 - 4)) / 8)