After a strong start, the U.S. Greco-Roman team fizzled at the Pytlasinski Tournament of Greco-Roman at Piotrkow Trybunalski, Poland this weekend. Only two wrestlers, Garrett Lowney (Appleton, Wis./Minnesota Storm) at 96 kg/211.25 lbs. and Dremiel Byers (Colorado Springs, Colo./U.S. Army) at 120 kg/264.5 lbs., placed in the tournament.    Lowney placed fourth after going 2-2 on the second day of competition. He defeated Mirto Englich of Germany, 3-0, and Gaber Karam of Egypt, 3-0, before losing a 5-3 decision to Ramaz Nazadze of Georgia in the semifinals. Nazadze went on to win the tournament. Lowney was then pinned by Grigoros Kaustsoubas of Greece in the third and fourth-place match.    Byers escaped from pool competition with a 3-0 win over Francesco Catalatio of Italy. In the semifinals, Byers lost a 3-1 decision to eventual champion Hassan Baroev of Russia before placing third with a forfeit win over Eddy Bengtsson of Sweden.    The U.S. team competed in this top international event to kick off its preparation for the 2002 World Championships. The World Championships are in in Moscow, Russia September 18-22.    World Team coaches Andy Seras of Newtown, Conn. and Shon Lewis of Fort Carson, Colo., plus National Coach Steve Fraser of Colorado Springs, Colo. coached the team.    PYTLASINSKI TOURNAMENT  at Piotrkow Trybunalski, Poland    U.S. results    55 kg/121lbs. - Brandon Paulson, Anoka, Minn. (Minnesota Storm) - did not place  won by tech. fall over Gregoroz Bulak (Poland), 10-0; dec. Dubrik Hamov (France), 3-0; lost dec. to Tenev Tenyo (Bulgaria), 5-0     60 kg/132 lbs. - Jim Gruenwald, Colorado Springs, Colo. (Sunkist Kids) - did not place  lost dec. to Makoto Sasamoto (Japan), 3-0; lost dec. to Viatcheslav Niamchenko (Russia), 5-2    66 kg/145.5 lbs. - Kevin Bracken, Colorado Springs, Colo. (NYAC) - did not place  won by inj. dft. over Mehdi Tavakoli (Iran); won by inj. dft. over Mikael Bayer (France); lost dec. to Maksim Siemionov (Russia), 4-0, ot    74 kg/163 lbs. - T.C. Dantzler, Colorado Springs, Colo. (NYAC) - did not place  lost by ref. dec. to Movees Karapeytyan (Armenia), 2-1, ot, 9:00; won by inj. dft. over Szymon Kogut (Poland); lost dec. to Badri Khasaia (Georgia), 3-1    74 kg/163 lbs. - Brandon McNab, Colorado Springs, Colo. (NYAC) - did not place  dec.  Bartolomiej Coasiak (Poland), 10-6; lost dec. to Alexej Gloushkov (Russia), 5-0    84 kg/185 lbs. - Brad Vering, Waterloo, Iowa (Sunkist Kids) - did not place  dec. Marko Yli-Hannuksela (Finland); lost dec. to Tomi Rajamaki (Finland)    96 kg/211.25 - Garrett Lowney, Appleton, Wis. (Minnesota Storm) - 4th place  dec. Igor Isoskins (Latvia), 4-1; dec. Shata Narmania (Belarus), 3-0; dec. Mirto Englich (Germany); dec. Gaber Karam (Egypt), 3-0; lost dec. to Ramaz Nozadze (Georgia), 5-3; lost by pin to Grigoros Kaustoubas (Greece)    120 kg/264.5 - Dremiel Byers, Colorado Springs, Colo. (U.S. Army) - 3rd place  dec. Jacek Fafinski (Poland), 3-0; dec. Francesco Catalatio (Italy), 3-0; lost dec. to Hassan Baroev (Russia), 3-1; won by forfeit over Eddy Bengtsson (Sweden)