Event: Division 2

Opponent Rating Result
Paul Jordan 1630 1 - 0
Graeme R Solomon 1701 0 - 1
Brian R Ewart 1716 1 - 0
David Al-Daini 1644 ½ - ½
Edward A Taylor 1678 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1834 = (8369 + 400 * (3 - 1)) / 5)

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