Event: Div 2 - Weston Trophy

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Opponent	Rating	Result
David Ashcroft	1810	0 - 1
Rishab Cammanchery Krishnan	1875	1 - 0
Nathaniel Holroyd-Doveton	1725	0 - 1
Peter J Hoare	1665	1 - 0
Abdul Qahar Abdul Quadri	0	½ - ½
Ionel Dragan	1927	0 - 1

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

1434 = (9002 + 400 * (2 - 3)) / 6)