The 2013 Oakland Raiders season was the franchise's 44th season in the National Football League (NFL), the 54th overall and the second under head coach Dennis Allen. With a 4–12 record, the Raiders secured their eleventh consecutive non-winning season, and missed the playoffs for an eleventh consecutive season. The Raiders entered the season with a new quarterback in Terrelle Pryor. Pryor started off the season in impressive fashion, with the team almost pulling off the upset in Week 1 against the Indianapolis Colts, and defeating the Jacksonville Jaguars in Week 2. The team and Pryor eventually cooled down, resulting in Pryor being benched for Matt McGloin in the game against the Houston Texans. Before this game, history was made in the game against the Philadelphia Eagles when Eagles quarterback Nick Foles threw 7 touchdown passes, the most passing touchdowns the Raiders had ever allowed in its history. Prior to the season starting, the Raiders brought back defensive back Charles Woodson, who spent the last 7 years with the Green Bay Packers.
The 2013 season was the San Francisco 49ers' 64th in the National Football League (NFL), 68th overall and third under the head coach/general manager tandem of Jim Harbaugh and Trent Baalke. This marked the first season since 2004 that quarterback Alex Smith was not on the roster as he joined the Kansas City Chiefs. This was the 49ers' final season playing their home games at Candlestick Park before moving into Levi's Stadium for the 2014 season.
The 2015 season was the San Francisco 49ers' 66th in the National Football League (NFL), the 70th overall, second playing their home games at Levi's Stadium, and the only season under head coach Jim Tomsula. They were attempting to make history as the first Super Bowl host team to play the Super Bowl on their own home field, but they failed to improve on their 8–8 record from 2014, and ended with a 5–11 record to miss the playoffs for the second season in a row and finish with a losing record for the first time since 2010. They also finished last in the NFC West for the first time in a decade, and marked the 31st consecutive year in which the Super Bowl did not include the team in whose region the game was being played – a feat that never has been achieved since themselves in 1984.
The 2015 season was the Seattle Seahawks' 40th in the National Football League (NFL) and their sixth under head coach Pete Carroll.
The 2016 season was the Kansas City Chiefs' 47th in the National Football League (NFL), their 57th overall and their fourth under head coach Andy Reid and the fourth and final season under general manager John Dorsey who was fired June 22, 2017. The Chiefs clinched their first AFC West division title since 2010, beginning a streak of eight consecutive that still stands as of 2023. The Chiefs also clinched a first-round bye for the first time since 2003, but lost to the Pittsburgh Steelers in the Divisional round 18–16.
The 2016 San Francisco 49ers season was the franchise's 67th season in the National Football League (NFL), the 71st overall, the third playing its home games at Levi's Stadium, and the only season under head coach Chip Kelly. The season saw the 49ers attempting to rebound from their 5–11 record the previous year, but finished 2–14, with their only wins coming against their division rival Los Angeles Rams. The 49ers also nearly became the first team since the 2001 Carolina Panthers to win their opener and lose the remainder of their games, prior to the 49ers' Week 16 win over the Rams. The 49ers' record was their worst since 2004, when they also finished 2–14. The 49ers' 1–7 home record tied the worst home record in franchise history. As a result, the 49ers fired Kelly and general manager Trent Baalke.
The 2016 season was the Seattle Seahawks' 41st in the National Football League (NFL) and their seventh under head coach Pete Carroll. On October 23, the team played the Arizona Cardinals in a game that ended in a 6–6 tie, the Seahawks' first tie in franchise history. With their win against the Los Angeles Rams in Week 15, the Seahawks claimed their third NFC West title in the last four years. The Seahawks defeated the Detroit Lions in the Wild Card Round, but lost 20-36 to the eventual NFC champion Atlanta Falcons in the Divisional Round.
The 2017 season was the Seattle Seahawks' 42nd in the National Football League (NFL) and their eighth under head coach Pete Carroll. The Seahawks tried to improve their 10–5–1 record from 2016. However, it did not happen because of injuries to key defensive players and poor offensive performances. After the Atlanta Falcons' Week 17 win over the Carolina Panthers, they were eliminated from playoff contention for the first time since 2011. They also failed to achieve a 10-win season for the first time since that same season. This was Russell Wilson's first season not making the playoffs.
The 2018 season was the Arizona Cardinals' 99th in the National Football League, their 31st in Arizona, and their only season under head coach Steve Wilks. During the off-season, State Farm purchased the naming rights to the Cardinals' home stadium and it was renamed from University of Phoenix Stadium to State Farm Stadium. Although former head coach Bruce Arians retired before the season began, he came out of retirement on January 8, 2019 to become the new coach of the Tampa Bay Buccaneers.
The 2018 season was the San Francisco 49ers' 69th in the National Football League (NFL), their 73rd overall, their fifth playing their home games at Levi's Stadium and their second under the head coach/general manager tandem of Kyle Shanahan and John Lynch.
The 2018 season was the Seattle Seahawks' 43rd in the National Football League (NFL) and their ninth under head coach Pete Carroll. The Seahawks improved on their 9–7 record from the 2017 season, finishing 10–6, the sixth time in seven years that they recorded at least ten wins in a season. They also played in London for the first time in franchise history, defeating the Oakland Raiders 27–3 in Week 6. With a win over the Kansas City Chiefs and eventual league MVP Patrick Mahomes in Week 16, the Seahawks returned to the playoffs; their seventh appearance in the nine seasons under Carroll. However, the Seahawks suffered their first one-and-done postseason campaign since 2004, as they fell to the Dallas Cowboys in the Wild Card round 24–22.
The 2019 season was the Minnesota Vikings' 59th in the National Football League (NFL), their fourth playing home games at U.S. Bank Stadium and their sixth under head coach Mike Zimmer. They improved on their 8–7–1 campaign from 2018 with a Week 14 win over the Detroit Lions, and returned to the playoffs following a one-year absence after the Los Angeles Rams lost to the San Francisco 49ers in Week 16. That week, the Vikings were eliminated from contention for the NFC North division title, losing 23–10 to the Green Bay Packers. They defeated the New Orleans Saints 26–20 in overtime in the Wild Card round but lost 27–10 to the eventual NFC champion San Francisco 49ers in the Divisional Round.
The 2019 season was the Arizona Cardinals' 100th in the National Football League (NFL), their 32nd in Arizona and their first under head coach Kliff Kingsbury, following the firing of former head coach Steve Wilks the previous season. During the offseason, the Cardinals' home stadium was renamed from University of Phoenix Stadium to State Farm Stadium. The Cardinals were one of two current teams, along with the Chicago Bears, who were among the 14 charter members of the American Professional Football Association, which later became the NFL, that celebrated its 100th season in 2019.
The 2020 season was the Seattle Seahawks' 45th in the National Football League (NFL) and their 11th season under head coach Pete Carroll. With a win over the Washington Football Team in Week 15, the Seahawks made the playoffs for the third consecutive year. With a Week 17 win over the San Francisco 49ers, they improved upon their 11–5 record from the previous season. For the first time in franchise history, the Seahawks started 5–0. After a Week 16 win over the Los Angeles Rams, the Seahawks clinched the NFC West title for the first time since 2016.
The 2021 season was the Chicago Bears' 102nd season in the National Football League (NFL), their 103rd overall, and their fourth and final under head coach Matt Nagy. This was the first season under the NFL's new 17-game schedule.
The 2021 season was the Seattle Seahawks' 46th season in the National Football League (NFL), their 20th playing their home games at their current venue, Lumen Field, as well as their 12th under head coach Pete Carroll.
The 2022 season was the San Francisco 49ers' 73rd in the National Football League (NFL), their 77th overall, and their sixth under the head coach/general manager tandem of Kyle Shanahan and John Lynch.
The 2022 season was the Seattle Seahawks' 47th in the National Football League (NFL) and their 13th under the head coach/general manager tandem of Pete Carroll and John Schneider.
The 2023 season was the San Francisco 49ers' 74th in the National Football League (NFL), their 78th overall, their tenth playing their home games at Levi's Stadium and their seventh under the head coach/general manager tandem of Kyle Shanahan and John Lynch. This was the team's first season since 2013 and 2016, respectively, without safety Jimmie Ward and quarterback Jimmy Garoppolo on the roster; Garoppolo signed with the Las Vegas Raiders on March 17, while Ward signed with the Houston Texans the following day.
The 2023 season was the Seattle Seahawks' 48th in the National Football League (NFL) and their 14th and final season under the head coach/general manager tandem of Pete Carroll and John Schneider. The Seahawks matched their 9–8 record from the previous year, but unlike 2022, it was not enough to qualify for the playoffs as they finished in third place in the division behind the San Francisco 49ers and Los Angeles Rams, and in a three-way tie with the Green Bay Packers and New Orleans Saints for the last Wild Card spot, which the Packers claimed via tiebreaker. Despite a 6–3 start, key injuries to Geno Smith, Kenneth Walker III, DK Metcalf, and Devon Witherspoon, sent the Seahawks into a four-game skid, with every loss coming against NFC playoff teams. While the Seahawks would win two games in a row, a loss to the Steelers cost them control of their own destiny. In total, Seattle played 11 games and went 3–8 against teams that finished with a winning record, culminating in a collapse that cost them an appearance in the postseason. This was the second time in three seasons that Seattle missed the playoffs.
