Event: Division 3 West

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Opponent	Rating	Result
John S O'Neill	132	0 - 1
Edward P Small	136	0 - 1
Patrick S Wojcik	114	½ - ½

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

-139 = (382 + 400 * (0 - 2)) / 3)