Dan Marino continued to break Dolphin records today by passing for 282 yards and three touchdowns to lead unbeaten Miami to a 38-7 rout of the winless Buffalo Bills.

Marino completed 19 of 28 passes, including scoring throws covering seven and 65 yards to Mark Clayton and 10 yards to Dan Johnson, as Miami ran its record to 9-0 -- the best start in the NFL since the Minnesota Vikings were 10-0 in 1975.

Marino, a second-year quarterback, broke Bob Griese's Dolphins single-season passing yardage mark of 2,473 yards late in the first quarter. He has 2,672 yards with seven regular-season games left.

It was the second time this season the Dolphins have defeated the Bills (0-9 and losers of 11 straight dating to last season), but this time it was easier. In a Monday night game at Buffalo last month, the Bills gave Miami all it could handle but lost, 21-17.

This time, before an Orange Bowl crowd of 58,824, Miami took a 24-0 halftime lead and the outcome was never in doubt.

Marino, who broke Griese's single-season record for touchdown passes during a 44-24 victory over New England last week, opened the scoring with a seven-yard pass to Clayton in the first quarter and then added a 10-yarder to Johnson in the second quarter. Uwe von Schamann kicked a 22-yard field goal which was followed by the play of the game, a 65-yard completion to Clayton down the sidelines.

Clayton, who has nine touchdown receptions, caught Marino's pass at the Buffalo 40 and headed up the right sideline for 20 yards before cutting back to elude Steve Freeman and run into the end zone.

It was Marino's 27th touchdown pass of the season.

Woody Bennett added a touchdown in the fourth quarter by diving over from one yard out. Miami completed the scoring with 3:26 left in the game when Pete Johnson went in from the one.

Buffalo struggled all day offensively as quarterback Joe Ferguson completed 20 of 30 passes for 136 yards. Ferguson's backup, Matt Kofler, directed the Bills' only scoring drive, a 10-play, 74-yard drive he ended with a five-yard touchdown pass to Preston Dennard with 1:22 left in the game.

Miami scored four of the seven times it had the ball in the first half.

Two possessions ended with Buffalo interceptions of Marino, who has now thrown eight this season, and the other terminated with a punt.

The Bills intercepted Marino three times and sacked him once before Don Strock replaced him in the fourth quarter.