Event: Open Rapid-play

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Opponent Rating Result
Ian Emery 1928 ½ - ½
Jonathan Dale 1863 1 - 0
Milenko (Mike) Walner 1621 ½ - ½
Steve F Tarr 1797 ½ - ½
Oluwole Ogeleye 1684 0 - 1
Ian Emery 1928 ½ - ½
Jonathan Dale 1863 1 - 0
Milenko (Mike) Walner 1621 1 - 0
Steve F Tarr 1797 1 - 0
Oluwole Ogeleye 1684 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1859 = (17786 + 400 * (4 - 2)) / 10)

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