Event: Division 2

Opponent Rating Result
Adrian P Joseph 1888 ½ - ½
Christopher Wray 1356 1 - 0
Mangalaram Sadhasivam 1632 0 - 1
Vittorio Nigrelli 0 0 - 1
Alexandr Pereslavtsev 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1215 = (6076 + 400 * (2 - 2)) / 5)

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