Event: OTB Club Championship

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Opponent	Rating	Result
Ivan Hutcheson	1499	1 - 0
Michael GA Wilson	1678	1 - 0
Jay Sharman	1590	½ - ½
Terry D Whitton	1897	1 - 0
John Cawdery	2089	0 - 1
Inder-Veer Singh	1737	0 - 1
Nigel White	1413	1 - 0

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

1815 = (11903 + 400 * (4 - 2)) / 7)