The upside: Even the worst defeats tend to feature a bright spot or two.
Quarterback Russell Wilson set a rookie record with 16 consecutive completions. He posted an NFL passer rating of at least 125.9 for the third game in a row and the fourth time in his past seven games. He led the NFL in Total QBR for Week 12 through the Sunday games.
Rookie middle linebacker Bobby Wagner intercepted a pass. He had another interception wiped out by a penalty unrelated to the pick.
Running back Leon Washington had a 98-yard kickoff return for a touchdown to break a 14-14 tie in the fourth quarter. Washington also had a 15-yard punt return.
Seattle did not commit a turnover.
Golden Tate made an acrobatic grab for a 32-yard reception.
The Seahawks allowed zero return yards of any kind. They downed six of Jon Ryan's seven punts inside the Miami 20-yard line. Ryan had a 40-yard net average.
Seattle converted half its 14 third-down chances and won time of possession by nearly four minutes.
Wilson, who had not played as well in third quarters this season, led a 12-play, 95-yard touchdown drive to open the second half for Seattle's offense.
Seattle allowed only two sacks, including zero to Cameron Wake.
The Seahawks remained in position as the sixth seed in the NFC playoff race when Tampa Bay and Minnesota also lost.
Looking ahead: The Seahawks visit the Chicago Bears in Week 13.