This article answers when the Green Bay Packers went 15-1, and it provides the primary box-score sources that support the timeline. It is written for sports fans and bettors who want a concise, sourced recap of the 2011 regular season. The content focuses on the key games, the Week 17 clincher, and how contemporaneous box scores recorded the Bears matchups.

The Packers' 15-1 regular season was the 2011 season, clinched on January 1, 2012.

Matt Flynn threw for 480 yards and six touchdowns in the Week 17 clincher.

Box scores list Green Bay as the favorite in both 2011 Bears meetings, with a larger spread at Lambeau on Dec 25.

Short answer: When the Packers went 15-1

The Green Bay Packers achieved a 15-1 regular-season record in the 2011 NFL season, a mark that was finalized with a 45-41 victory over the Detroit Lions on January 1, 2012, according to the official Week 17 box score Detroit at Green Bay box score.

When did the Packers go 15-1?

The Packers went 15-1 in the 2011 regular season, a mark finalized with a 45-41 win over the Detroit Lions on January 1, 2012.

That 15-1 figure refers specifically to the regular season; the Pro-Football-Reference season page lists the team's full game log and shows the 13-0 start and the single regular-season loss at Kansas City on December 18, 2011 2011 Green Bay Packers season page.

Season timeline: the key games that defined 2011

Start to 13-0 and the first loss

Green Bay opened the 2011 campaign with a 13-game win streak that put the club in position to finish with an exceptional regular-season record; the season summary and game log provide the game-by-game results for that streak 2011 Green Bay Packers season page.

The Packers' lone regular-season defeat came on December 18, 2011, in an away game at Arrowhead Stadium against the Kansas City Chiefs, a loss that ended the undefeated run and is recorded in the Kansas City box score Green Bay at Kansas City box score.

Week 17 finale vs Detroit

The Week 17 game on January 1, 2012, at Lambeau Field concluded 45-41 in favor of Green Bay, a result that mathematically finalized the Packers' 15-1 regular-season total; the detailed box score documents the score and individual statistics for that clinching game Detroit at Green Bay box score.

That Week 17 performance is notable because Aaron Rodgers sat out and backup Matt Flynn started and produced a standout statistical line that was decisive for the final record, as shown in the same box score Detroit at Green Bay box score.

Postseason outcome

The Packers did not translate the 15-1 regular season into a Super Bowl title; their postseason ended with a 37-20 loss to the New York Giants on January 15, 2012, as documented in the Divisional Round box score Giants at Packers box score.

The season page and postseason box score together show how an outstanding regular-season record and a short playoff run can both be part of the same team narrative 2011 Green Bay Packers season page.

How the Packers fared against the Bears in 2011

September 25 at Soldier Field

Green Bay beat Chicago at Soldier Field on September 25, 2011; the box score for that game records the final score, play-by-play details, and the archived betting-line information that accompanied the contest Green Bay at Chicago box score.

For readers verifying head-to-head results, the September meeting is listed alongside the later December rematch on the Packers' season page, which shows the two wins in the head-to-head sequence 2011 Green Bay Packers season page.

Verify game results and archived spreads on box-score pages

Game date
Final score
Favorite and spread

Use the box score's header fields

December 25 at Lambeau Field

The Packers also beat the Bears on December 25, 2011, at Lambeau Field; the box score for that Christmas Day game contains the official scoring summary and the archived line information that shows how the matchup was listed by the reference source Chicago at Green Bay box score.

Both the September and December box scores list Green Bay as the favorite in the contemporaneous listings, and the December home game shows a larger archived spread in that source's header information compared with the September meeting Chicago at Green Bay box score.

Where these results are recorded: primary sources to check

Close up of a vintage Green Bay Packers 2011 ticket showing a prominent Week 17 notation on a dark branded background minimalist style bears packers point spread

The Pro-Football-Reference team season page for 2011 provides a compact summary of each game, the win-loss record, and links to every box score that underpins this article 2011 Green Bay Packers season page. Also see the team's main page Green Bay Packers team page.

Individual game box scores include the final score, individual player statistics, play-by-play, and the archived betting-line notation that many researchers use to reconstruct how markets listed favorites and spreads for historical matchups Detroit at Green Bay box score. For a broader list of box scores, see Pro-Football-Reference boxscores index.

What the contemporaneous betting lines say about the Bears games

Both Packers-Bears box scores for 2011 list Green Bay as the favorite in their header information, which is the source used here to summarize how betting markets treated those matchups on game day Green Bay at Chicago box score.

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The December 25 game at Lambeau shows a larger archived spread in the box-score listing than the September meeting, reflecting the market view and situational factors at the later date as recorded by the reference source Chicago at Green Bay box score.

Readers should treat these archived spreads as historical snapshots: they record how the games were listed by a particular reference at the time and are useful for context rather than a definitive market dataset across all books Chicago at Green Bay box score.

Week 17 in detail: Matt Flynn's performance and the clinch

Flynn's stat line

In the Week 17 game that finalized the Packers' regular-season record, Matt Flynn completed a standout outing, throwing for 480 yards and six touchdowns in the 45-41 victory, as recorded in the official box score for the game Detroit at Green Bay box score.

The box score lists Flynn's yards and touchdown totals alongside the play-by-play and scoring drives, which together show how the game's offensive output produced the scoreline that secured the 15-1 regular-season mark Detroit at Green Bay box score.

Game impact on final record

That Week 17 win was the final game of the regular season and directly produced the 15-1 statistic, a regular-season total that remains recorded on the team season page and in league archives 2011 Green Bay Packers season page.

While the performance was notable on its own merits, the statistical line and the final score are both detailed in the same box score, which is the authoritative primary source for the game-level facts reported here Detroit at Green Bay box score.

Context and legacy: why the 15-1 regular season matters

A 15-1 regular season is rare and significant because it reflects sustained performance across the schedule, but it is only one part of a team's historical record and does not in itself equate to postseason success 2011 Green Bay Packers season page. See broader historical context in the Green Bay Packers research starter EBSCO Research Starter.

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Check the cited box scores and the season page to confirm the timeline and to see how individual performances contributed to the final record.

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For legacy discussions, analysts compare regular-season dominance with playoff outcomes; the Packers' 2011 season is often cited as an example where an outstanding regular season was followed by an earlier-than-expected playoff exit documented in the Divisional Round box score Giants at Packers box score. See related posts on the Funded Plays blog Funded Plays blog.

Common fan questions answered

Who started Week 17

Matt Flynn started Week 17 and his performance in that game is recorded in the Week 17 box score where his 480 passing yards and six touchdown passes are listed Detroit at Green Bay box score.

Did the 15-1 team win the Super Bowl

No, the team that finished 15-1 in the regular season did not win the Super Bowl; their postseason run ended with a 37-20 Divisional Round loss to the New York Giants on January 15, 2012, as shown in the playoff box score Giants at Packers box score.

For readers wanting a comprehensive game list, the Pro-Football-Reference season page links to every box score and provides a quick way to verify starters, substitutions, and game outcomes 2011 Green Bay Packers season page.

Mistakes and myths to avoid when recalling 2011

Do not conflate the regular-season 15-1 mark with a championship result; the Packers' season ended in the Divisional Round, so the regular-season record and postseason result are distinct parts of the same season record Giants at Packers box score.

Avoid relying on memory for specific dates and scores; check the box scores and the season page to confirm the precise scorelines, dates, and game-level statistics before citing them 2011 Green Bay Packers season page.

How betting markets treated the Packers across key games

In the Packers-Bears meetings of 2011, the archived box scores from the cited reference list Green Bay as the favorite for both games, reflecting how that source recorded the market on game day Green Bay at Chicago box score.

The December 25 home meeting shows a larger archived spread in the box score header than the September away game, which can reflect situational factors such as injuries, home-field advantage, or late-season positioning recorded by the source Chicago at Green Bay box score.

Game-by-game snapshot: the run to 15-1

Start: games 1 to 13

The season page provides the sequence of wins that comprised the 13-0 start, with dates and opponents listed for each game so readers can trace the streak game by game 2011 Green Bay Packers season page.

The Kansas City loss

The sole regular-season defeat on December 18, 2011, at Kansas City is documented in the Kansas City box score, which lists the final score, scoring drives, and game context for that matchup Green Bay at Kansas City box score.

Finish and clinch

The Week 17 win over Detroit finalized the 15-1 regular-season total, and readers can verify the clinching score and the individual player statistics in the Week 17 box score Detroit at Green Bay box score.

How to verify these facts yourself: checking box scores and season pages

Open the Pro-Football-Reference 2011 Packers season page to access the full game log and links to individual box scores for the Detroit game, the Kansas City game, both Bears matchups, and the Giants postseason game 2011 Green Bay Packers season page, and visit the Funded Plays homepage Funded Plays.

Minimalist 2D vector split image showing simplified silhouettes of Soldier Field and Lambeau Field side by side in Funded Plays colors deep charcoal background and pale gold accents bears packers point spread

In each box score, check these fields: game date, final score, the starters list for quarterback changes, and the header where archived favorite and spread information is displayed; those fields are the ones used to support the timelines and betting-line notes in this article Chicago at Green Bay box score.

Brief summary and recommended next reads

Recap: the Packers went 15-1 in the 2011 regular season, a record finalized with the January 1, 2012, win over the Detroit Lions, and the team was eliminated in the Divisional Round by the New York Giants on January 15, 2012 2011 Green Bay Packers season page. Also see how evaluations work at Funded Plays evaluations.

For further reading, consult the season page and the individual box scores cited throughout this article for the primary game-level evidence and archived betting-line context Detroit at Green Bay box score.

Who started for the Packers in Week 17 of 2011?

Matt Flynn started Week 17 and threw for 480 yards and six touchdowns in the Week 17 box score.

Did the 15-1 Packers win the Super Bowl that season?

No. The 2011 Packers were eliminated in the NFC Divisional Round by the New York Giants.

Where can I verify the betting lines for the Bears-Packers games in 2011?

Check the Pro-Football-Reference box scores for the September 25 and December 25, 2011 games to see how that source recorded favorites and spreads.

If you want to verify any specific game detail, open the cited Pro-Football-Reference season page and the linked box scores. These primary sources provide the game dates, scores, player stats, and archived betting-line information used in this article.