Event: Max 400

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Opponent	Rating	Result
John Wassell	77	0 - 1
Antonia (Toni) Reed	76	0 - 1
Harvey S Watkins	91	0 - 1
John Eardley	50	0 - 1
Antonia (Toni) Reed	76	0 - 1
David Howles	50	0 - 1
Harvey S Watkins	91	0 - 1
John Eardley	50	1 - 0

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

-230 = (561 + 400 * (1 - 7)) / 8)