Event: Division 2

Opponent Rating Result
Matthew Lawes-Wickwar 1616 ½ - ½
Matthew Lawes-Wickwar 1618 1 - 0
John WF McAllister 1653 1 - 0
James Irwin 1770 ½ - ½
Peter Coleman 1600 0 - 1
Robert L Jones 1656 1 - 0
Robert W Stephens 1713 ½ - ½
James Irwin 1785 0 - 1
Peter Coleman 1700 ½ - ½
Mark Heffer 1712 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1762 = (16823 + 400 * (4 - 2)) / 10)

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