Event: Division 2

Opponent Rating Result
Bernard J Charnley 1909 1 - 0
Ed H Goodwin 1918 ½ - ½
Keith R Ingram 1844 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1890 = (5671 + 400 * (1 - 1)) / 3)

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