Event: Division 1

Opponent Rating Result
Peter Harbott 1913 ½ - ½
Laurence A Butt 1862 0 - 1
Paul J Kelly 1970 ½ - ½
Alex Von Der Becke 1780 ½ - ½
Michael C Forster 2110 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1767 = (9635 + 400 * (0 - 2)) / 5)

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