Event: Darlington RAPIDPLAY

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Opponent	Rating	Result
Jonathan Sams	1743	1 - 0
Jonathan Sams	1743	½ - ½
Liam Bellwood	1679	0 - 1
Liam Bellwood	1679	0 - 1
Carl Stephens	1570	1 - 0
Carl Stephens	1570	½ - ½
Peter McKay	1638	1 - 0
Peter McKay	1638	1 - 0
James Garner	1593	0 - 1
James Garner	1593	½ - ½
Richard J Harris	1795	1 - 0
Luke Owen	1345	1 - 0
Luke Owen	1345	0 - 1

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

1672 = (20931 + 400 * (6 - 4)) / 13)