Event: 4th Cornwall Spring Minor

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Opponent Rating Result
Douglas Bramley 1325 ½ - ½
Clive Liggatt 1367 1 - 0
Lloyd Russell 1343 1 - 0
Ian P Blencowe 1512 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1687 = (5547 + 400 * (3 - 0)) / 4)

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