Event: 4-Board Division 2

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Opponent	Rating	Result
Olegs Dukalevs	142	1 - 0
Chris J Matthews	144	0 - 1
Roger K Noble	134	1 - 0

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

273 = (420 + 400 * (2 - 1)) / 3)