Edwin Moses, the premier intermediate hurdler in track and field history, appears to have no more barriers to conquer in his event.

Yet, Moses, who will be 33 next month, continues to compete at the highest level and currently ranks as the favorite for a record third Olympic gold medal in the 400-meter hurdles at the Seoul Games.First, however, he must gain a berth on the U.S. team, which will be determined during the Olympic trials, that start Friday and end July 23 at the Indiana University Track and Field Stadium.

"There are only three positions (in the 400 hurdles), and I'm going to have one of them," Moses said. "I always go in thinking I'm going to get my spot."

Moses has run only twice this year, but he feels that is sufficient preparation. He opened with a clocking of 48.38 seconds, his fastest first race of the year ever, and followed with 48.27.

Only NCAA champion Kevin Young of UCLA, 47.85, has run faster.

Young, along with Danny Harris and Andre Phillips, should provide Moses with his strongest opposition at the trials.

Harris, a three-time NCAA champion at Iowa State, ended Moses' remarkable 10-year, 122-race winning streak last year at Madrid, Spain. Phillips was ranked No. 1 in the world in 1985, when Moses was injured, and in 1986, although Moses was unbeaten in 10 races.

Despite the impressive credentials of Young, Harris and Phillips, the indomitable Moses is not overly concerned about them during the trials.

"There were three others (besides me) who could have won places on the team in 1984," Moses said, referring to Harris, Phillips and David Patrick.

Instead, Moses beat them all, then went on to win his second Olympic gold medal, joining Glenn Davis, the 1956 and 1960 champion, as the only double winners in the 400 hurdles in Games' history.

In addition to his Olympic golds in 1976 and 1984, Moses is 2 for 2 in the World Championships, 3 for 3 in the World Cup and has broken the world record four times, lowering it the last time to 47.02 in 1983.