Event: Division 2

Opponent Rating Result
Chris Latham 1686 0 - 1
Anthony J Pimblett 1727 0 - 1
Lee Walls 1619 1 - 0
Artur Hrabchak 1750 0 - 1
John J Grady 1620 ½ - ½
Michael Delaney 1644 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1474 = (10046 + 400 * (1 - 4)) / 6)

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