Event: Division 4

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Opponent	Rating	Result
Karanveer Singh	873	1 - 0
Marc Carter	1100	0 - 1
Satbir Lalli	1848	1 - 0

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

1407 = (3821 + 400 * (2 - 1)) / 3)