Event: Division 2

Opponent Rating Result
Keith S Jones 1745 0 - 1
Soumen Roy 1922 0 - 1
Mahmud Mazed 1425 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1564 = (5092 + 400 * (1 - 2)) / 3)

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