Event: IM Brown Shield

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Opponent Rating Result
Keith Thompson 1862 0 - 1
Samuel J Playford 1711 1 - 0
Henry Withington 1909 0 - 1
Richard B Mounce 1845 0 - 1
Roger W Jennings 1892 0 - 1
Douglas McKerracher 1790 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1702 = (11009 + 400 * (2 - 4)) / 6)

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