Event: NSDCA Division 2

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Opponent Rating Result
Chinenye Basil-Nwachuku 1600 ½ - ½
Ebube Christian 1600 1 - 0
Roger W Walker 1621 0 - 1
Kenneth J McNulty 1711 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1533 = (6532 + 400 * (1 - 2)) / 4)

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