Event: Division 1

Opponent Rating Result
Martin Archbold 1521 1 - 0
Ian G Gallagher 2080 ½ - ½
Oliver Stubbs 2081 0 - 1
Nigel K Hosken 2088 ½ - ½
Peter J Kirby 2031 ½ - ½
Carl Bicknell 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1567 = (9801 + 400 * (1 - 2)) / 6)

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