Event: App Frod Rapid

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Opponent	Rating	Result
Michael Bath	1500	1 - 0
Michael Bath	1500	1 - 0
Denis Georgiou	1774	0 - 1
Denis Georgiou	1774	0 - 1
Rico-Bradley Ellis	1612	0 - 1
Rico-Bradley Ellis	1612	1 - 0
Glyn G Williams	1548	0 - 1
Glyn G Williams	1548	1 - 0
Michal Trafas	1414
Michal Trafas	1414
Simon Whytock	0
Simon Whytock	0
John P Mainwaring	1702
John P Mainwaring	1702
Stan J Smart	1648
Stan J Smart	1648
Bernard Pratten	1681
Bernard Pratten	1681
Joanne Hutchinson	1734
Joanne Hutchinson	1734
Joe Kilshaw	2042
Joe Kilshaw	2042

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

1609 = (12868 + 400 * (4 - 4)) / 8)