Event: Division 3

Opponent Rating Result
Garry Evans 1626 1 - 0
Roy G Watson 1487 1 - 0
Paolo Ortolani 1664 ½ - ½
Jon A Asbury 1537 1 - 0
Arthur Hibbitt 1687 1 - 0
Nigel Foster 1568 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1862 = (9569 + 400 * (4 - 0)) / 6)

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