Event: Summer Tournament

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Opponent Rating Result
Tyrone R Jefferies 1555 0 - 1
David A Page 1788 0 - 1
Vytautas Gedminas 1713 0 - 1
Eli Gallamoy 1600 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1264 = (6656 + 400 * (0 - 4)) / 4)

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