Event: B(2) Division

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Opponent	Rating	Result
Marlon Espiritu	1728	1 - 0
Alex Robinson	1775	1 - 0
Robin IR Wilding	1778	½ - ½

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

2027 = (5281 + 400 * (2 - 0)) / 3)