Event: Division 1

Opponent Rating Result
Francis Rayner 2132 0 - 1
Bernard Cafferty 2045 ½ - ½
Alec Hedger 1910 1 - 0
Ian S Comley 1874 1 - 0
Mark Broom 2141 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2100 = (10102 + 400 * (2 - 1)) / 5)

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