Event: BSE Jnr Congress u9

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Opponent Rating Result
Dominic Pugaciauskas 955 0 - 1
Sidney Horn 500 ½ - ½
Elena Young 600 1 - 0
Laurence Edwards 629 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

571 = (2684 + 400 * (1 - 2)) / 4)

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