Event: Division 1

Opponent Rating Result
Norman A Hutchinson 1879 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1879 = (1879 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Alan Richardson 1929 ½ - ½
John G Daugman 1814 ½ - ½
Stephen W Ruthen 1838 ½ - ½
Anas Ibn Saifullah 1800 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1845 = (7381 + 400 * (0 - 0)) / 4)