Event: NSDCA Division 3

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Opponent	Rating	Result
Ewan Corden	1256	½ - ½
Jim Leech	1125	0 - 1
Isabelle M Rose	1326	1 - 0
Neville S Jones	1395	½ - ½
Roger Coleman	1279	½ - ½
Philip Smith	1250	0 - 1
Peter Hiscock	1185	½ - ½
Robert Perry	1102	½ - ½
Steve Ballantyne	1354	0 - 1

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

1164 = (11272 + 400 * (1 - 3)) / 9)