George Washington's Wade Hughes won his third-round match yesterday but lost in the semifinals of the NCAA wrestling championships in Oklahoma City.

In the quarterfinals yesterday, Hughes, the fifth seed, routed fourth-seeded John Thorn of Iowa State, 17-7, in the 126-pound division. In his semifinal match, Hughes was beaten by top-seeded Barry Davis of Iowa, 16-11.

Thursday, Hughes, a senior from Washington, D.C. (Carroll High School), won his first-round match over Barry Bairos of Arizona State (7-7, 7-2), then pinned Ron Ensign of Tennessee-Chattanooga in 48 seconds, the fastest fall of the tournament.

Four Navy wrestlers also competed. Jim Peters lost his first match at 118 to Matt Egeland of defending NCAA champion Iowa, 8-1. Dave Marquis (126) was decisioned, 7-5, by Nick Milonas of Montclair State, also in the first round.

The Midshipmen's Tim Szymanski won his first-round bout at 158 over Mike Hamel of Wyoming, but lost in the second round to Mike Gerdes of Illinois State, 6-5.

Gerdes, Milonas and Egeland lost their next matches, so none of the Navy wrestlers they defeated advanced to the consolation bracket.

At 177 pounds, Navy's Kevin Brooks lost his first-round match to Maryland's Steve Peperak, 6-4. Peperak lost to Kent State's Doug Duke, 19-6, in the second round. Duke then lost to Melvin Douglas of Oklahoma, 4-3, so Peperak did not advance to the consolation round.

Two other Maryland wrestlers, Tony Russo (126) and Steve Depetro (158), lost first-round matches and did not make the consolations.

Chuck Toler of American lost his first-round match to Michigan's John Fisher, 25-9, at 134 pounds and was eliminated.

Iowa, seeking its eighth straight NCAA title and ninth in 10 years, all but wrapped up the team title with 125 3/4 points, followed by Oklahoma with 71, Iowa State with 56 1/2 and Oklahoma State with 51.