Event: 7th Peter & Peggy Clarke Memorial

Opponent Rating Result
Michael J Dow 1545 1 - 0
Freddie Sugden 1727 ½ - ½
Peter J Worthington 1666 0 - 1
Harvey Cooper 1628 0 - 1
Benjamin Masters 0 1 - 0
Trefor F Thynne 1876 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1407 = (8442 + 400 * (2 - 2)) / 6)

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