Event: WDCL Division 2

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Opponent	Rating	Result
Colin Mather	1463	1 - 0
Sean Murphy	1440	0 - 1
Daniel Robinson	1500	1 - 0
Aaron Milne	1281	1 - 0
Joe Brewer	1200	1 - 0
Richard Devonport	1381	0 - 1
Graham Arthur	1308	1 - 0
Frank Skidmore	1368	1 - 0

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

1568 = (10941 + 400 * (6 - 2)) / 8)