Event: York Club Championship

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Opponent	Rating	Result
Daniel Meredith	1466	½ - ½
Derek Toyne	1569	1 - 0
Paul A Johnson	1916	½ - ½
Stephen Donkin	1489	½ - ½
Herbert Lockwood	1602	1 - 0
M Paul Townsend	2300	0 - 1
Ewen Miller	1786	1 - 0
Aaron Rich	1924	0 - 1

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

1807 = (14052 + 400 * (3 - 2)) / 8)