Event: Two East

Opponent Rating Result
John S Walton 1833 ½ - ½
Andrew H Heard 1855 0 - 1
Peter A Nickals 1812 0 - 1
Chris J Todd 1893 0 - 1
Tony B Packham 1826 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1524 = (9219 + 400 * (0 - 4)) / 5)

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