Event: Spring Tournament (Open)

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Opponent	Rating	Result
John M Quinn	2234	0 - 1
Nandinee Thatte	1583
Nishchal Thatte	2010
Sagnik Chatterjee	0	0 - 0
Harvey Grewal	1725	0 - 1
Simon Healeas	1848	0 - 1
Philip J Makepeace	2174	0 - 1
Leslie Pringle	1643	½ - ½

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

1605 = (9624 + 400 * (0 - 4)) / 5)