The 1999 season was the San Diego Chargers' 30th in the National Football League (NFL), their 40th overall and their first under head coach Mike Riley.
The 2004 season was the Houston Texans' third in the National Football League, all of which they had spent under head coach Dom Capers. The team finished 7–9, two games better than the previous season, and came third in the AFC South, the first time they had not finished bottom. The Texans also earned their first victory over the Tennessee Titans, the franchise previously known as the Oilers, who had left Houston after the 1996 season.
The 2005 Houston Texans season was the franchise's 4th season in the National Football League and the 4th and final season under head coach Dom Capers. The Texans completed the season with the worst record in franchise history. This led to the Texans obtaining the first selection in the NFL Draft for the second time since the franchise formed in 2002. The team fired head coach Dom Capers after the season; he was replaced by Denver Broncos offensive coordinator Gary Kubiak, who would coach the team up until 2013. Their Week 3 game was postponed due to Hurricane Rita. The Texans failed to win a division game, and went 0–8 on the road for the first time in franchise history.
The 2003 Oakland Raiders season was the 44th season of professional football for the Oakland Raiders franchise, their 34th season as members of the National Football League (NFL), and their ninth season since returning to Oakland. They were led by head coach Bill Callahan in his second and final year as head coach of the Raiders. The Raiders played their home games at Network Associates Coliseum as members of the AFC West. They finished the season 4–12 to finish in a tie with the Chargers for last place, but the Raiders finished in 3rd place because they had a better conference record than the Chargers did. It marked the first time since 1999 that the Raiders failed to make the playoffs and finished with a losing record for the first time since 1997.
The 99th Grey Cup was a Canadian football game between the East Division champion Winnipeg Blue Bombers and the West Division champion BC Lions to decide the champion of the Canadian Football League in the 2011 season. The Lions defeated the Blue Bombers 34–23 and became the first team in CFL history to win the Grey Cup after starting the season with five straight losses. They also became the first team to win the championship game at home since the 1994 Lions did it in the 82nd Grey Cup, and were only the fourth team in the modern era to do so. This, a rematch of the 76th Grey Cup, was the second time that these two teams met for the championship.
The 2011 Dallas Cowboys season was the franchise's 52nd season in the National Football League (NFL), the third playing their home games at Cowboys Stadium and the first full season under head coach Jason Garrett. The team improved on their 6–10 record from 2010, but missed the playoffs for the second consecutive season due to their week 17 loss to the eventual Super Bowl champion New York Giants.
The 2012 Tennessee Titans season was the franchise's 43rd season in the National Football League (NFL), the 53rd overall, the 16th in the state of Tennessee and the second under head coach Mike Munchak. It was also the last full season under the ownership of Bud Adams, who died on October 21, 2013. The Titans failed to improve on their 9–7 record in 2011 and were eliminated from postseason contention in Week 14.
The 2013 Saskatchewan Roughriders season was the 56th season for the team in the Canadian Football League. The Roughriders improved upon their 8–10 record from 2012 and made the playoffs for the second straight season, while hosting their first playoff game since 2010. After defeating the BC Lions and Calgary Stampeders in the playoffs, the Roughriders qualified for their fourth Grey Cup appearance in seven years and first ever at their home stadium. The team defeated the Hamilton Tiger-Cats 45-23 in the 101st Grey Cup en route to winning the franchise's fourth championship. With the added seats at Mosaic Stadium at Taylor Field, the Roughriders led the league in attendance for the first time, with an average of 37,503 fans attending each regular season game.
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 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 2020 season was the Atlanta Falcons' 55th season in the National Football League (NFL), their fourth playing their home games at Mercedes-Benz Stadium, and their sixth and final season under head coach Dan Quinn.
The 2020 season was the Arizona Cardinals' 101st in the National Football League (NFL), their 33rd in Arizona and their second under head coach Kliff Kingsbury. It was also the first full season since 1971 without the ownership of Bill Bidwill, who died during the 2019 season.
The 2021 season was the Indianapolis Colts' 69th season in the National Football League (NFL) and their 38th in Indianapolis. It was their fourth season under head coach Frank Reich and fifth under the leadership of general manager Chris Ballard. Despite having 7 Pro Bowlers and 5 AP All-Pros, the Colts failed to improve upon their 11–5 record from the previous season, after a Week 12 loss to the Tampa Bay Buccaneers. The Colts were eliminated from the postseason in the final week of the season after a stunning loss to the 2–14 Jacksonville Jaguars and the Pittsburgh Steelers beating the Baltimore Ravens the same day.
The 2021 season was the Arizona Cardinals' 102nd season in the National Football League (NFL), their 34th in Arizona and their third under head coach Kliff Kingsbury. They improved from their 8–8 season from the previous year with a 23–13 victory over the Seattle Seahawks in Week 11. The Cardinals started 7–0 for the first time in 47 years when they were based in St. Louis. With their week 11 win over their division rivals, the Seattle Seahawks, the Cardinals improved on their record from the previous year and clinched their first winning season since 2015. Despite a loss to the Indianapolis Colts in Week 16, the Cardinals clinched a playoff berth for the first time since 2015 after the Minnesota Vikings lost to the Los Angeles Rams.
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 Houston Texans' 21st in the National Football League (NFL) and their only season under Lovie Smith, following the firing of David Culley at the end of the 2021 season.
The 2022 season was the Atlanta Falcons' 57th in the National Football League (NFL), their sixth playing their home games at Mercedes-Benz Stadium and their second under head coach Arthur Smith.
The 2023 Edmonton Elks season was the 65th season for the team in the Canadian Football League and their 74th overall. After an 0–9 start to the season, the Elks were mathematically eliminated from playoff contention following their week 18 loss to the Toronto Argonauts.
The 2023 Calgary Stampeders season was the 65th season for the team in the Canadian Football League and their 78th overall. It was Dave Dickenson's seventh season as head coach and first as general manager following his promotion.
The 2023 season was the Las Vegas Raiders' 54th season in the National Football League (NFL), their 64th overall, their fourth in Las Vegas, and their second and final under the head coach/general manager tandem of Josh McDaniels and Dave Ziegler. On October 31, following a Week 8 loss to the Detroit Lions, the Raiders fired McDaniels and Ziegler. The Raiders named linebackers coach Antonio Pierce interim head coach, and assistant general manager Champ Kelly interim general manager. Following the season, the team named Antonio Pierce the full-time head coach after the team finished the season with a record of 5–4 under Pierce.
