Event: Five Counties Div 2

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Opponent	Rating	Result
Shaurya Kumar	0	1 - 0
Asoke K Nandi	1522	1 - 0
Barry Scales	1119	1 - 0
Seb George	1313	0 - 1
Anna Markova	1450	1 - 0
Abinash Ravithas	1372	0 - 1
Kasi Veshagan Nallaperumal	0	1 - 0
John M Casewell	1313	1 - 0

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

1211 = (8089 + 400 * (6 - 2)) / 8)