Event: WDCL Division 2

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Opponent	Rating	Result
Stephen Harrison	1541	0 - 1
Graham Arthur	1271	½ - ½
David Tomkins	1527	1 - 0
Ray Smith	1681	0 - 1
Bernard Bedworth	1441	0 - 1
David snr Stanfield	1632	0 - 1
Joe Brewer	1200	1 - 0
Elliott Barnett	1630	0 - 1
Anthony Oldham	1409	0 - 1
Keith Lyon	1706	0 - 1
Raymond Weedall	1620	1 - 0

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

1369 = (16658 + 400 * (3 - 7)) / 11)