Event: NSDCA Division 1

Opponent Rating Result
Martin J Burns 1907 1 - 0
Harry Gardiner 1889 0 - 1
Alex Richardson 2040 0 - 1
John R Booth 1828 1 - 0
Michael A Lee 1706 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1954 = (9370 + 400 * (3 - 2)) / 5)

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