Event: 4-Board Division 2

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Opponent	Rating	Result
Ghai Chong	80	0 - 1
Steve J Thrower	101	1 - 0
Nick Colley	94	0 - 1

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

-42 = (275 + 400 * (1 - 2)) / 3)