Event: NSDCA Division 3

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Opponent	Rating	Result
David M Rose	1543	½ - ½
Jay Baddeley	1601	0 - 1
Richard Fish	1485	½ - ½
Ewan Corden	1269	1 - 0
Philip Smith	1480	1 - 0
Neville S Jones	1451	½ - ½
Adam Fields	1440	1 - 0

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

1581 = (10269 + 400 * (3 - 1)) / 7)