Schedule Note: Intra-division opponents are in
bold text.
Game summaries Week 1: at Jacksonville Jaguars The Chiefs started their 2013 season on the road against the Jaguars. The Jags scored a safety when J. T. Thomas blocked a punt in the end zone, giving them a 2–0 lead. The Chiefs took the lead when Alex Smith found Donnie Avery on a 5-yard touchdown pass, making the score 7–2. This was followed up by Smith finding Junior Hemingway on a 3-yard pass, extending the Chiefs' lead to 14–2. In the second quarter, the Chiefs continued to dominate as Jamaal Charles ran for a 2-yard touchdown, giving the team a 21–2 halftime lead. After a scoreless third quarter, the Chiefs scored the only points of the second half in the fourth quarter when Tamba Hali returned an interception 10 yards for a touchdown. The Chiefs beat the
Jacksonville Jaguars 28–2,
the first time in NFL history a game ended with that score. It was also the second time in 20 years a team scored only two points during a regular season game, as well as being the most recent one as of 2021. The Jaguars crossed the 50-yard line once during the game but failed to score. With the win, the Chiefs started 1–0.
Week 2: vs. Dallas Cowboys The Chiefs made their regular season debut at home against the Cowboys. They scored first as Jamaal Charles caught a 2-yard touchdown pass from Alex Smith for a 7–0 lead. The Cowboys got on the scoreboard when Dan Bailey kicked a 51-yard field goal to make the score 7–3, followed by Tony Romo and
Dez Bryant hooking up on a 2-yard pass to give the Cowboys a 10–7 lead. With the 2nd quarter being scoreless, the Cowboys held on to their lead through halftime. In the 3rd quarter, Bailey nailed a 30-yard field goal to increase the Cowboys' lead to 13–7. However, the Chiefs retook the lead when Smith found Dwayne Bowe on a 12-yard pass, making the score 14–13. In the 4th quarter, the Chiefs increased their lead to 17–13 when Ryan Succop nailed a 40-yard field goal. The Cowboys tried to rally late, but came up a point short when the only score they could muster was a 53-yard field goal by Bailey. The Chiefs won the game 17–16, earning their first 2–0 start since
2010.
Week 3: at Philadelphia Eagles After a close call win at home, the Chiefs traveled to Philadelphia to take on the Eagles in a TNF duel. The Chiefs started their scoring when Ryan Succop kicked a 33-yard field goal for a 3–0 lead. This was followed by Eric Berry returning an interception 38 yards for a touchdown for a 10–0 lead. The Eagles managed to get on the board later on in the quarter when
Michael Vick found
Jason Avant on a 22-yard touchdown pass (with a failed PAT) making the score 10–6. The Chiefs continued to dominate as Succop kicked 2 field goals increasing his teams lead from 7 to eventually 10 points with field goals from 31 and 34 yards out 13–6 and 16–6 at halftime. In the 3rd quarter, the Eagles managed to rally coming within 7 points as Alex Henery kicked a 29-yard field goal for the only score of the quarter. The Chiefs pulled away as Jamaal Charles ran for a 3-yard touchdown for a 23–9 lead. The Eagles then fired back as
LeSean McCoy ran for a touchdown from 41-yards out once again coming within 7 23–16. With Succop's 38-yard field goal, the Chiefs were able to seal the game with a final score of 26–16 sending them to a 3–0 start, their first such start since 2010. This was also head coach
Andy Reid’s first visit to Philadelphia since he was fired by the organization a season earlier. Reid served as the Eagles head coach from 1999 to 2012.
Week 4: vs. New York Giants After a win over the Eagles, the Chiefs returned home for a game against the Giants. After a scoreless first quarter, they got on the board as Alex Smith found Sean McGrath on a 5-yard pass for a 7–0 lead. The Giants managed to tie the game up as
Eli Manning found Victor Cruz on a 69-yard pass making the score 7–7. Ryan Succop then kicked a 51-yard field goal to send the Chiefs to a 10–7 halftime lead. In the second half, the Chiefs dominated as Dexter McCluster ran a punt back 89 yards for a touchdown increasing their lead to 17–7 for the only score of the third quarter. In the fourth quarter, Alex Smith threw two more touchdown passes to Jamaal Charles and Dwayne Bowe from 2 and 34 yards out that eventually sealed the game for them, moving them up 24–7 before the final score sat at 31–7. The win sent the Chiefs to their first 4–0 start since 2003.
Week 5: at Tennessee Titans Kansas City jumped to 13–0 lead but by end of the third quarter, the Chiefs were trailing 17–13. But the Chiefs answered by scoring 13 unanswered points in the 4th quarter and won the game 26–17. With the win, the team improved to 5–0, their first such start since 2003.
Week 6: vs. Oakland Raiders The Chiefs improved to 6–0 after defeating the
Oakland Raiders 24–7, and snapped a six-game home losing streak to the Oakland Raiders dating back to the 2007 season. It was at this game that Arrowhead Stadium fans set a new Guinness World Record for loudest outdoor stadium in any sport. It also featured the largest flyover with 42 planes.
Week 7: vs. Houston Texans With the win, the Chiefs improved to 7–0, the first time they had begun a season with such a record since 2003. With the Broncos' loss to the Colts, they became the league's only undefeated team while they also became leader of the AFC West.
Week 8: vs. Cleveland Browns With the win, the Chiefs improved to 8–0 for the first time since 2003.
Week 9: at Buffalo Bills With the win, the Chiefs went 9–0 heading into their bye week. It also gave them their first winning season since 2010 and first 9–0 start since 2003.
Week 11: at Denver Broncos Against the Broncos in a battle of the 9–0 Chiefs and 8–1 Broncos, Denver wound up beating the Chiefs 27–17, handing the Chiefs their first loss. With the loss, the Chiefs fell to 9–1.
Week 12: vs. San Diego Chargers San Diego triumphed in the highest-scoring matchup with Kansas City since a 42–41 loss in
1986. The game lead changed eight times as
Alex Smith threw for 294 yards and three touchdowns, but Rivers (392 yards) won it in the final seconds on a 26-yard score to
Seyi Ajirotutu. The loss was Kansas City's second straight after the Chiefs' nine-game winning streak.
Week 13: vs. Denver Broncos Kansas City led 21–7 at one point, but the Broncos came back to win 35–28 and sweep the Chiefs for the second straight season. With their third straight loss, the Chiefs fell to 9–3. They were the first 9–0 team in NFL history to lose three straight games following a 9–0 start.
Week 14: at Washington Redskins The Chiefs finally found their winning ways again, as they beat the Redskins 45–10 and led 38–10 at halftime. With the win, the Chiefs improved to 10–3.
Week 15: at Oakland Raiders Jamaal Charles scored five touchdowns for the Chiefs as they won 56–31 at Oakland. With the win, the Chiefs improved to 11–3.
Week 16: vs. Indianapolis Colts In a preview of the Wild Card game between these two teams, the Chiefs lost to Indianapolis 23–7 despite leading 7–0 at one point. With the loss, the Chiefs fell to 11–4.
Week 17: at San Diego Chargers With no Alex Smith playing due to Kansas City resting their starters for the playoffs, it was up to
Chase Daniel to guide the Chiefs. Kansas City missed a field goal at the end of regulation. The Chargers won in overtime on a field goal. With the loss, the Chiefs finished the regular season 11–5 and finished 2–4 against their division and 9–1 against the rest of the NFL.
Standings Division Conference ==Postseason==