Event: Division 1

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Opponent	Rating	Result
Rupert J Bowley	1960	½ - ½
Alan M Byron	2208	0 - 1
John Thomson	1765	½ - ½
Andrew J Morley	2058	½ - ½
Michael J Busby	1518	1 - 0
Romilly Ilersic	1908	½ - ½
Graham J Sharpe	2103	0 - 1

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

1874 = (13520 + 400 * (1 - 2)) / 7)