The Washington Bullets, who had won four of five road games before last night's encounter in Denver, hope to break the NBA champion Trail Blazers' impressive 31-game homecourt win streak tonight in Portland at 11. (WTOP-AM radio, 1500)

The Trail Blazers, led by Bill Walton's 20.3 points and 12.9 rebounds per game average, own the NBA's best record at 21.4. Last year, the Blazers won their final eight regular-season home games and 10 straight homecourt playoff games enroute to the championship. This year, they have captured 13 consecutive games in their Memorial Coliseum.

The Bullets, winners of 12 their last 15, are healthy with the possible exception of Wes Unseld, who aggravated an injury to his left calf muscle Thursday in practice. Kevin Grevey needed eight stitiches to his upper lip during Washington's victory over Golden State but is expected to play.

Seattle, successful under new coach Lenny Wilkins, will host the Bullets Sunday at 10 p.m. The Bullets complete their four-game, five-day road trip Tuesday with an 11 p.m. visit to the Los Angeles Lakers.

The Bullets return home Christmas night for a 7:35 Capital Centre clash with Atlanta.