Event: Division 1

Opponent Rating Result
Norman G Andrews 1500 1 - 0
Giuseppe Febbo 1647 ½ - ½
Ben Williamson 1589 1 - 0
Richard Sanger 1793 ½ - ½
David Wm Smith 1732 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1892 = (8261 + 400 * (3 - 0)) / 5)

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