Event: BCL Division 2

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Opponent	Rating	Result
David Webber	1562	1 - 0
Andy Evans	1553	1 - 0
George Ward	1773	0 - 1
Alexander Potts	0	½ - ½
Richard McMorran	1678	1 - 0
David Phillips	1420	1 - 0
Richard McMorran	1678	½ - ½
Colin J Solloway	1656	1 - 0

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

1615 = (11320 + 400 * (5 - 1)) / 8)