Event: B Division

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Opponent	Rating	Result
Liam Bellwood	1679	0 - 1
Joe McGinnis	1563	0 - 1
Ray Pallister	1563	0 - 1
Peter Harker	1758	0 - 1
Bill March	1570	1 - 0
Iain Mellis	1583	½ - ½
David Lowcock	1460	0 - 1
Andrew G French	1608	0 - 1
Aiden Darlow	0	1 - 0
Richard Kuby	1381	½ - ½

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

1257 = (14165 + 400 * (2 - 6)) / 10)