Event: Essex Summer Rapid Knockout

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Opponent	Rating	Result
Robert JV Davies	1615	1 - 0
Robert JV Davies	1615	1 - 0
V Radu Bara	1892	0 - 1
V Radu Bara	1892	0 - 1

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

1754 = (7014 + 400 * (2 - 2)) / 4)