In 19 seasons, Krieg played in 213 games, completed 58.5 percent of his passes (3,105 for 5,311) for 38,147 passing yards, 261 touchdowns, 199 interceptions and an 81.5 rating. He also had 417 rushing attempts for 1,261 yards and 13 touchdowns and 3 pass receptions for 10 yards.
Dave Krieg played in 12 postseason games and completed 51.1 percent of his passes (144 for 282) for 1,895 passing yards, 11 touchdowns, 10 interceptions and a 70.86 rating. He also had 17 rushing attempts for 20 yards and 1 touchdown.
By the middle of the 1981 season, Krieg bypassed Sam Adkins on the depth chart to become the Seahawks' second-string quarterback. When injuries sidelined Jim Zorn late in the season, Krieg started the last three games and played well, helping the team record two of its six wins that year. In his first NFL start against the New York Jets, Krieg ran for one touchdown and threw for two others, including a 57-yard game-winning completion to Steve Largent.
Krieg began the strike-shortened 1982 season as the Seahawks' starting quarterback and played respectably until a thumb injury sidelined him for several weeks. Zorn reclaimed his former role, but played inconsistently. When Zorn continued to struggle in the final game of the season, Coach Mike McCormack inserted Krieg, who rallied Seattle to a victory over the Denver Broncos.
Returning to the bench at the outset of the 1983 campaign, Krieg remained there until Zorn's performance faltered in midseason. At that point, Coach Chuck Knox named Krieg the Seahawks' new starting quarterback. The Milton product's consistent play complemented the considerable talents of All-Pro wide receiver Steve Largent and Pro Bowl running back Curt Warner, allowing the Seahawks to make the playoffs for the first time in the team's history. Krieg played brilliantly in the wild card round of the playoffs, helping his team rout John Elway and the Broncos in the Kingdome. The next week, Krieg's steady performance helped the Seahawks upset Dan Marino and the Miami Dolphins on the road. However, Krieg's putrid display in the American Football Conference Championship Game led Knox to bench him in favor of Zorn, and the visiting Seahawks lost to the Los Angeles Raiders, who would go on to win Super Bowl XVIII.
Krieg resumed his starting role in 1984. In the year's first game, a knee injury sidelined the Seahawks' star running back Curt Warner for the rest of the season, forcing Coach Knox to discard his run-oriented "Ground Chuck" offense and adopt a new philosophy: "Air Knox." Rising to the occasion, Krieg threw for 3,671 yards and 32 touchdowns, leading his team to a 12-4 record and another wild card playoff appearance. In recognition of this impressive performance, Krieg's NFL peers named him to his first Pro Bowl. Moreover, his steady play helped the Seahawks eliminate the reigning Super Bowl champion Raiders in a wild card showdown in the Kingdome. Krieg also played well in Miami the following week, but the Dolphins defeated the Seahawks and went on to lose Super Bowl XIX.
Krieg's inconsistency contributed to the mediocrity of the Seahawks' 1985 campaign. In the team's eight victories, Krieg's quarterback rating averaged more than 114--an excellent mark--but in the Seahawks' eight losses, his rating hovered just above a dismal 40.
In 1986, Krieg played well initially, leading the Seahawks to a 5-3 record. However, he faltered in midseason, so Coach Knox benched him in favor of Gale Gilbert. When that remedy failed to avert a four-game losing streak, Knox gave Krieg another chance. Nicknamed "Mudbone" by his Seattle teammates , Krieg led the Seahawks on five-game winning streak to finish the season, during which his quarterback rating exceeded 126. That December, Mudbone was named AFC Player of the Month. However, the 10-6 Seahawks failed to qualify for the playoffs.
Despite a brief midseason slump, Krieg played more consistently during the strike-shortened 1987 season. In the year's first game, Mudbone set a team record by throwing his 108th touchdown; in less than four years as a starter, Krieg had broken a record Zorn had compiled over more than seven starting seasons. Mudbone proceeded to lead the Seahawks to another playoff appearance, but Krieg's performance failed to prevent a narrow loss on the road in the first round against the Houston Oilers.
Perhaps due to this increased competition, Krieg's consistency increased further in 1988. Although he spent seven games on injured reserve due to a separated shoulder, his excellent play helped propel the Seahawks to their first AFC West Division Championship. In the regular season finale, Mudbone dissected the Raiders' secondary, throwing for 410 yards and four touchdowns, thereby securing the division title and relegating the Raiders to a wild card berth. However, Krieg's pedestrian performance on the road in the playoffs contributed to the Seahawks' swift elimination at the hands of the Cincinnati Bengals. Nevertheless, Mudbone's strong regular season showing earned him another Pro Bowl appearance.
In the spring of 1989, Krieg competed in ABC's prestigious Superstars competition, a series of physical challenges pitting athletes from various sports against one another. Mudbone placed third overall, behind Willie Gault and Herschel Walker. Krieg placed first in the basketball and rowing events, beating athletes including Gault, Walker, Randall Cunningham, Evander Holyfield, and Carl Lewis.
In 1989, Krieg struggled to lead an offense depleted by injuries. All-Pro Steve Largent missed several games due to a fractured elbow. The running game sputtered as injuries slowed Curt Warner, and the aging offensive line struggled to open holes for him. Krieg came to rely on fullback John L. Williams, who replaced Largent as the team's perennial leading receiver. Although the Seahawks managed only a 7-9 record, Mudbone played well enough to earn a return trip to the Pro Bowl, where he performed impressively, helping lead the AFC to victory.
Mudbone's burden grew heavier in 1990, with the retirement of Largent and the continued decline of the offensive line and the running game. Consequently, inconsistency again plagued Krieg. His play ranged from awful (2 games with quarterback ratings below 15) to mediocre (5 games in the 50s and 60s) to good (4 games in the 70s, 80s or 90s) to brilliant (5 games with ratings over 100). In the most memorable game of the season, on November 11th, the Seahawks made their annual visit to Arrowhead Stadium, where they had not won since 1980. The Kansas City Chiefs sacked Krieg 9 times, including an NFL-record 7 sacks by linebacker Derrick Thomas. However, on the last play of the game, as time expired, Thomas closed in for yet another apparent sack, but Mudbone eluded the linebacker and threw a 25-yard touchdown pass to wide receiver Paul Skansi for the win. Krieg's leadership helped the Seahawks compile a respectable 9-7 record in 1990, but they again missed the playoffs.
In 1991, the Seahawks spent a first-round draft pick on another quarterback of the future, Dan McGwire.
After breaking his thumb in the season opener, Krieg missed 6 games in 1991. Without a strong supporting cast, Mudbone turned in another inconsistent year. The Seahawks finished a disappointing 7-9, leading to the resignation of Coach Knox. Seattle General Manager Tom Flores decided to retain Stouffer and McGwire, and to let Krieg become a free agent. That decision helped doom the Seahawks to several seasons of misery and mediocrity under a succession of uninspired quarterbacks
In the offseason, the Chiefs signed Joe Montana and made him their starting quarterback. However, Krieg still saw substantial action in 1993, relieving Montana in six games, and starting five games for the oft-injured Hall of Famer. Together, Montana and Krieg led the Chiefs to an 11-5 record and an AFC West Championship. In the first round of the playoffs, when the Chiefs hosted the Pittsburgh Steelers, an injured Montana briefly left the game. In relief, Krieg threw just one pass, a 23-yard touchdown. Two weeks later, at the AFC Championship Game in Buffalo, Montana sustained a concussion and left the game in the third quarter. Krieg led a 90-yard touchdown drive to bring the Chiefs within 7 points, but the Buffalo Bills scored 10 unanswered points in the fourth quarter to qualify for their fourth straight Super Bowl appearance.
However, in the 1998 season opener in Cincinnati, McNair exited the game with a bruised elbow. Krieg--by then nearly 40 years old--came off the bench to rally the Titans to victory. Although McNair recovered from his injury and could have re-entered the game, the team let Krieg finish. "Dave was in the zone," McNair explained. "He was doing a great job moving the team up and down the field. It's a matter of doing what's right (for the team). At that time, what was right was letting Dave stay in.
Later that month, the Jacksonville Jaguars knocked McNair out of a game, but Krieg's comeback effort failed. Krieg retired after the 1998 season.
He was inducted into the Seattle Seahawks Ring of Honor in 2004.