Event: 4th Simon Bartlett Memorial Intermediate

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Opponent Rating Result
Brooklyn Stephens 1650 ½ - ½
Charles Doidge 1623 1 - 0
Malcolm A Roberts 1662 ½ - ½
Michael P Freund 1625 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1640 = (6560 + 400 * (1 - 1)) / 4)

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