Event: Leon Garfield Rapid-Play Cup

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Opponent Rating Result
Harry J Sharples 1651 0 - 1
John L Clarke 1362 0 - 1
Peter McGill 1667 0 - 1
Leon A Garfield 1283 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1091 = (5963 + 400 * (0 - 4)) / 4)

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