Event: Division 2

Opponent Rating Result
Howard Brears 1681 ½ - ½
Paul W Jones 1662 ½ - ½
Norman G Andrews 1627 ½ - ½
Robert A Maltby 1634 ½ - ½
David Buckley 1587 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1718 = (8191 + 400 * (1 - 0)) / 5)

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