Event: St Andrews Intermediate Tournament

Opponent Rating Result
Henrik Salbol 1398 0 - 1
Colin Hurst 1023 1 - 0
David P Thrun 1345 ½ - ½
Ronald Botham 1083 1 - 0
Darren Tomlinson 973 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1244 = (5822 + 400 * (2 - 1)) / 5)

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