Event: Division 1

Opponent Rating Result
Richard R Welford 1984 1 - 0
Russell G Granat 2245 ½ - ½
Philip M Stimpson 1996 ½ - ½
Bernard Cafferty 2020 ½ - ½
Laurence A Butt 1870 1 - 0
James C Mansson 2107 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2237 = (12222 + 400 * (3 - 0)) / 6)

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