Event: Internal Rapidplay January

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Opponent Rating Result
Bhima Patil 1320 1 - 0
Francis Batchelor 1921 0 - 1
Harris Wilson 1131 0 - 1
J Alan Stockley 1400 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1243 = (5772 + 400 * (1 - 3)) / 4)

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