Event: Division A

Opponent Rating Result
Mark R A Murrell 1809 0 - 1
Czeslaw (Sebastian) Ponulak 1953 0 - 1
Robin J Oakley 1769 0 - 1
Ashley Freeman 1966 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1474 = (7497 + 400 * (0 - 4)) / 4)

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