Div. I leaders are David Taylor of Penn State (dominant), Taylor Walsh of Indiana (pins) and Joe Colon of UNI (tech falls).
Minnesota beat Cornell in the National Duals finals, to remain at No. 1. The top five teams are unchanged.
Olympian Spenser Mango and World Team member Joe Betterman are on the six-athlete team competing in Bulgaria.
2012 Olympian Kelsey Campbell is among the stars expected at the 55 kg Women's World Cup Wrestle-off.
With the addition of events for Kids and Cadet, the ASICS/Las Vegas Open Championships features all age divisions.
See how Andy Hrovat prepared for the 2008 Olympics.
Minnesota gave Cornell its first dual meet loss of the season, led by a pin from Dylan Ness (pictured).
Armenia is led by Artur Arakelyan (65 kg) and three past Junior World medalists.
The top ranked Americans are No. 3 Helen Maroulis at 53 kg and No. 4 Alyssa Lampe at 48 kg.
Minnesota, Cornell, Oklahoma and Ohio State claimed quarterfinals wins at the National Duals.
Kent State and Central Michigan won big matches in the opening round at the National Duals.