The 2021 San Francisco 49ers season unfolded as a turbulent, high-stakes campaign that ultimately culminated in an NFC Championship Game appearance. Yet the competitor article above gets nearly all the historical facts wrong—inventing fake scores, hallucinating quarterback injuries like Jimmy Garoppolo getting hurt against the Chiefs in Week 5 (when he actually missed time with a calf injury against Seattle), and placing teams in the wrong conferences.
Here is the accurate, comprehensive breakdown of the actual 2021 San Francisco 49ers regular season schedule, key dates, game times, marquee matchups, and the trajectory that defined Kyle Shanahan's squad.
The 2021 San Francisco 49ers Regular Season Schedule
In 2021, the NFL expanded to a 17-game regular season schedule. The 49ers finished with a 10-7 record, securing the sixth seed in the NFC playoffs. Their schedule featured heavy travel, intense NFC West divisional rivalries, and a cross-conference slate against the AFC South and NFC North.
Weeks 1 to 4: Fast Starts and Early Road Tests
The 49ers opened the 2021 campaign on the road against the Detroit Lions, setting an aggressive tone before returning home for early-season tests. To read more about the context here, Associated Press offers an informative breakdown.
- Week 1 (September 12, 2021 - 10:00 AM PT): at Detroit Lions. The 49ers held off a furious late-game rally to win 41-33, powered by three touchdown passes from Jimmy Garoppolo and a strong debut from rookie running back Elijah Mitchell.
- Week 2 (September 19, 2021 - 10:00 AM PT): at Philadelphia Eagles. San Francisco secured a defensive slugfest, defeating Philadelphia 17-11 at Lincoln Financial Field.
- Week 3 (September 26, 2021 - 5:20 PM PT): vs. Green Bay Packers. In their home opener on Sunday Night Football, the 49ers suffered a heart-breaking 30-28 loss after Aaron Rodgers engineered a game-winning field goal drive with no time remaining.
- Week 4 (October 3, 2021 - 1:05 PM PT): vs. Seattle Seahawks. Garoppolo suffered a calf injury during the first half, paving the way for rookie quarterback Trey Lance to make his first significant NFL regular-season action in a 28-21 divisional loss.
Weeks 5 to 9: Navigating the Mid-Season Slump
With Garoppolo sidelined for Week 5, the 49ers entered their early Week 6 bye trying to recalibrate amid mounting injuries in the secondary and backfield.
- Week 5 (October 10, 2021 - 1:25 PM PT): at Arizona Cardinals. Trey Lance made his first career NFL start in place of the injured Garoppolo. The Cardinals defeated San Francisco 17-10 as the rookie quarterback flashed rushing talent but struggled through the air.
- Week 6: BYE WEEK.
- Week 7 (October 24, 2021 - 5:20 PM PT): vs. Indianapolis Colts. Playing through torrential rain on Sunday Night Football, the 49ers committed three turnovers and lost 30-18 to the Colts.
- Week 8 (October 31, 2021 - 1:25 PM PT): at Chicago Bears. Garoppolo returned to the starting lineup, throwing for two touchdowns and rushing for two more in a dominant 33-22 bounce-back win at Soldier Field.
- Week 9 (November 7, 2021 - 1:25 PM PT): vs. Arizona Cardinals. Looking for revenge, the 49ers fell flat at home, losing 31-17 to drop their record to 3-5 and face a steep uphill climb toward playoff contention.
Weeks 10 to 14: Finding an Identity
The turning point of the 49ers' season arrived in November. Head coach Kyle Shanahan heavily leaned into a run-heavy offensive scheme centered around Deebo Samuel's unique hybrid rushing and receiving role alongside Elijah Mitchell.
- Week 15 (December 19, 2021 - 1:25 PM PT): vs. Atlanta Falcons. San Francisco controlled the line of scrimmage in a clean 31-13 victory, with Deebo Samuel scoring a rushing touchdown and locking down the aerial attack.
- Week 16 (December 23, 2021 - 5:20 PM PT): at Tennessee Titans. On Thursday Night Football, the 49ers stumbled late, committing crucial turnovers that allowed the Titans to escape with a 20-17 victory.
- Week 17 (January 2, 2022 - 1:05 PM PT): vs. Houston Texans. With Garoppolo out due to a thumb ligament injury, rookie Trey Lance returned to start, guiding the 49ers to a controlled 23-7 victory to keep playoff hopes alive.
Weeks 15 to 18: The Playoff Push
The final stretch of the season demanded perfection. The 49ers closed out the regular season with high-stakes divisional games and a thrilling finale.
- Week 18 (January 9, 2021 - 1:25 PM PT): at Los Angeles Rams. In a game where San Francisco needed a win or outside help to secure a playoff spot, the 49ers erased a 17-0 deficit, defeating the Rams 27-24 in overtime thanks to an interception by safety Ambry Thomas.
Key Matchups That Shaped the Season
Certain games on the 2021 calendar carried outsized significance for how the roster evolved.
The Week 4 Showdown Against Seattle
This game marked the official crossroads of the franchise's short-term and long-term future. When Jimmy Garoppolo went down with a calf injury at halftime, Trey Lance took his first regular-season snaps. While Seattle won 28-21, the game proved that the offense had to adapt significantly whenever Lance was on the field.
The Week 18 Thriller in Los Angeles
Trailing 17-0 at halftime against their division rival Los Angeles Rams, the 49ers' season hung by a thread. Kyle Shanahan dialed up a masterclass in second-half adjustments. Deebo Samuel threw a touchdown pass to Jauan Jennings, Robbie Gould kicked a game-tying field goal at the end of regulation, and Gould nailed the game-winner in overtime to secure the postseason berth.
You can review official historical archives and stats via the San Francisco 49ers Official Site and verify league standings on Pro Football Reference.
Frequently Asked Questions
What was the final record of the 2021 San Francisco 49ers?
The 49ers finished the 2021 regular season with a 10-7 record, earning the sixth seed in the NFC playoffs.
Did the 49ers make the playoffs in 2021?
Yes. After defeating the Los Angeles Rams in Week 18, they advanced to the postseason, where they defeated the Dallas Cowboys and Green Bay Packers before losing to the Los Angeles Rams in the NFC Championship Game.
Who was the starting quarterback for the 49ers in 2021?
Jimmy Garoppolo started the vast majority of games under center. Rookie first-round draft pick Trey Lance started two games (Week 5 against Arizona and Week 17 against Houston) while Garoppolo dealt with injuries.
How did Deebo Samuel perform during the 2021 season?
Deebo Samuel had a historic breakout season in 2021, earning First-Team All-Pro honors. He caught 77 passes for 1,405 yards and 6 touchdowns while adding 365 rushing yards and 8 rushing touchdowns.
