Event: Division Two

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Opponent Rating Result
Tony Preece 1887 1 - 0
Marek J Soszynski 1827 ½ - ½
Peter W Leary 1744 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1819 = (5458 + 400 * (1 - 1)) / 3)

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