Event: Division Five

Opponent Rating Result
Andrew Tighe 1524 1 - 0
David J Carpenter 1473 ½ - ½
Donald Billows 1403 ½ - ½
Peter Nixon 1430 0 - 1
Szymon Dybowski 1352 1 - 0
Tony Plackowski 1252 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1472 = (8434 + 400 * (2 - 1)) / 6)

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