Chargers vs Kansas City Chiefs 2025: Full Season Series Breakdown, Player Stats

The Problem Nobody Saw Coming — And the Chargers Who Solved It

For years, the Chargers vs Kansas City Chiefs matchup meant one thing: Patrick Mahomes finds a way. Twice in 2025, he didn’t. Justin Herbert dismantled Kansas City’s identity in Week 1, and when the rematch came at Arrowhead in December, the Chargers did it again — this time quietly, clinically, and on the road. The question isn’t whether Los Angeles is legit anymore. It’s whether Andy Reid knows how to stop them.

Key Takeaways

• Justin Herbert threw for 318 yards and 3 touchdowns in Week 1 (QB rating: 131.7), outdueling Mahomes by every passing metric that matters.
• Los Angeles Chargers’ defense registered 5 sacks in the Week 15 rematch at Arrowhead, holding Mahomes to a 51.5 passer rating and 2 interceptions — his worst two-game stretch of the season.
• The Chargers swept the Chiefs in 2025, going 2-0 in the season series for the first time in years, outscoring Kansas City 43–34 across both games.

Game Box Score: Chargers vs Chiefs — 2025 Season Series

Week 1 — September 6, 2025 | SoFi Stadium | LAC 27 – KC 21

Week 15 — December 14, 2025 | Arrowhead Stadium | KC 13 – LAC 16

Quarterback Battle and Passing Yards: Herbert’s Week 1 Statement

Justin Herbert put the NFL on notice in the season opener. His 318 passing yards came on just 34 attempts, and his 73.5 completion percentage signaled a rhythm that Kansas City’s coverage had no answer for. Three different receivers caught touchdown passes — Quentin Johnston twice, Keenan Allen once — and Herbert never threw a bad ball when it mattered.

Mahomes, by contrast, managed 258 yards at a 61.5% clip. His 89.5 passer rating sounds adequate until you remember who he’s supposed to be. Kansas City rushed for 98 yards, which actually outpaced Los Angeles on the ground, but Patrick Mahomes’ nine poor throws told a different story about the precision gap between the two quarterbacks on this particular afternoon.

Week 1 Key Passing Stats:

• Herbert completed passes to at least six different targets, with zero drops recorded
• Mahomes was sacked twice and faced 15 blitzes; he converted just 1 of 5 red-zone pass attempts into touchdowns
• Herbert’s longest completion: 33 yards; Mahomes’ longest: 49 yards to a Kelce late in the fourth quarter

Touchdown Highlights: Three Scores That Defined the Opener

The touchdowns in Week 1 weren’t just counters on a scoreboard — they told the story of a receiving corps executing with precision.

• Q1 | Herbert → Quentin Johnston, 5 yards: A quick slant that hit on the first drive, forcing Kansas City to recalibrate defensively before the stadium had even settled in.
• Q3 | Herbert → Keenan Allen, 11 yards: A beautiful back-shoulder throw in the red zone that Allen plucked away from coverage — one of those catches that looks routine until you try to draw it up.
• Q4 | Herbert → Quentin Johnston, 23 yards: The dagger. Johnston beat his man downfield and hauled in the go-ahead score with under five minutes remaining, pushing the lead to 27–18 and effectively ending the Chiefs’ comeback bid.

Mahomes answered with a Kelce grab (37 yards, TD) to keep it interesting, but the Chargers’ hold on game management never cracked.

Defensive Impact and Sacks: The Week 15 Blueprint That Silenced Arrowhead

If Week 1 was about Herbert’s arm, the December rematch was about Los Angeles winning with their defensive front. The Chargers’ pass rush registered 5 sacks at Arrowhead — one of the more quietly dominant performances against Mahomes all season — and forced two interceptions that crumpled Kansas City’s final offensive sequences.

Mahomes finished with a 51.5 passer rating on the road to the playoffs. His decision-making deteriorated as the game unfolded, with five poor throws logged and his pocket time averaging a rushed 2.75 seconds. The Chargers defense forced four three-and-outs, dominated field position, and held the ball for over 34 minutes.

LAC Defense — Week 15 Arrowhead Performance:

• 5 sacks for 21 yards lost by the Chiefs offense
• 2 interceptions of Mahomes in the second half
• 9 quarterback hits in total
• Held KC to just 49 rushing yards on 21 attempts (2.3 yards per carry)
• Four three-and-outs forced

That 49-yard rushing total for Kansas City was particularly ugly. When Mahomes can’t lean on the run to reset, the Chargers exposed exactly how exposed Kansas City’s offense becomes in a drop-back-heavy gameplan.

Rushing Leaders and Ground Efficiency: Two Different Stories

Neither game was decided by elite running — but the Chargers’ ground game in December was far more effective and more methodical.

Week 1 Rushing Breakdown

Los Angeles ran for 90 yards on 25 carries (3.6 avg), leaning on Herbert’s own 4 scrambles as part of that total. Kansas City was more efficient on the ground — 98 yards on just 17 carries (5.8 avg) — highlighted by Mahomes tucking and running for an 11-yard scoring scramble in the third quarter. In terms of yards per attempt, KC won the rushing battle. They lost the game anyway because the passing differential was too steep.

Week 15 Rushing Breakdown

The story flipped entirely. The Chargers controlled the clock with 94 yards on 29 carries and held Kansas City to just 49 yards on 21 attempts. Mahomes’ lone rushing score — a 12-yard scramble in Q1 — came from improvisation, not design. The Chargers dominated time of possession 34:42 to 25:18, grinding down KC’s defense while keeping their own fresh for the second half.

Rushing Leaders Summary (Season Series):

• LAC Ground Game: 90 yds (Wk1) / 94 yds (Wk15) — consistent, efficient
• KC Ground Game: 98 yds (Wk1) / 49 yds (Wk15) — collapsed at the key moment
• Mahomes rushing TDs: 1 each game (both via scramble, not design)

Cameron Dicker, Cameron Dicker, Cameron Dicker

In a series swept by field position management and close scores, the kicking game separated these teams more than any highlight-reel throw. Chargers kicker Cameron Dicker was a perfect 5-for-5 across both matchups, including a pair of 49-yard bombs in the December rematch that provided the winning margin.

Three 49-yarders with a game on the line in Arrowhead. That’s not luck — that’s a kicker who has quietly become one of the AFC’s most reliable weapons in critical moments.

How Herbert’s Completion Rate Beat Mahomes’ Reputation

The football world talks endlessly about Mahomes’ ability to manufacture plays. What the 2025 Chargers season series proved is that Herbert’s efficiency is just as dangerous when the offense is humming. In Week 1, Herbert’s 73.5% completion rate wasn’t a byproduct of dump-offs — his air yards (184) far outpaced Mahomes’ (142). He was moving the chains downfield, not checking down.

In Week 15, Herbert dialed it back — 19 of 29, one touchdown — but managed the game precisely as needed. He didn’t force plays in a conservative run-heavy gameplan. One pick, zero disasters. That kind of controlled discipline against Kansas City’s defense, in their building, on a winter Sunday, is harder to do than any stat line conveys.

Penalty Discipline and Turnover Battle

One data point that doesn’t always make headlines but absolutely shapes outcomes: the Chiefs drew 10 penalties for 71 yards in Week 1. Accepted penalties handed the Chargers multiple sustained drives that would have stalled otherwise.

Discipline & Turnovers:

• Week 1: LAC — 0 turnovers / 6 penalties. KC — 0 turnovers / 10 penalties
• Week 15: LAC — 1 turnover (fumble, recovered) / 5 penalties. KC — 2 turnovers (both INTs) / 9 penalties

Kansas City’s penalty problem in Week 1 (71 yards surrendered) wasn’t an anomaly. Andy Reid’s teams tend to play undisciplined when rattled by an opponent that won’t let them settle into rhythm — and Herbert’s offense didn’t give them a moment to breathe.

What the Game Box Score Tells Us About Each Roster

At a team level, the box score comparison across both games reveals a consistent pattern. Los Angeles controlled possession time in both contests, won the turnover battle convincingly in Week 15, and kept field goal attempts short and makeable. Kansas City’s offense still generated yardage — 347 in Week 1, 239 in Week 15 — but struggled to convert volume into points when it mattered.

The Chiefs averaged just 17 points per game against the Chargers in 2025, well below their seasonal norm. The Chargers’ defense, built around a rotation that harassed Mahomes from multiple angles, was the most consistent difference-maker across both games.

NFL Player Stats That Defined the Season Series

Future Outlook: What the Next Chargers–Chiefs Meeting Will Look Like

These two teams are already scheduled to meet again in Week 6 of the 2026 season at Arrowhead (October 18, 2026). Based on what this series revealed, here’s the analytical forecast:

Kansas City will not show up the same way twice. Reid and offensive coordinator Matt Nagy will have spent months designing counters to Los Angeles’ pass-rush packaging.

The Chargers’ edge is health and offensive continuity. Herbert’s connection with Johnston appears to be the best slot-and-outside receiving tandem he’s had since Cooper Kupp’s prime years. If that nucleus stays intact into 2026, the Chargers enter the matchup as the more stable offensive unit.

The X-Factor: Los Angeles’ defensive line depth. Five sacks in a single game against Mahomes doesn’t happen by accident. If those pass rushers are healthy and similarly deployed, expect another low-to-mid scoring game where field position and turnover margin decide everything.

Prediction: The 2026 meeting at Arrowhead goes to the wire again. Chargers have won two straight in this series. History suggests Kansas City finds a way in Game 3 — but Los Angeles now owns the psychological edge in this rivalry for the first time in years.

FAQ: Chargers vs Kansas City Chiefs — Top Questions Answered

Q1: What was the final score of the Chargers vs Chiefs in Week 1 of the 2025 NFL season?

The Los Angeles Chargers defeated the Kansas City Chiefs 27–21 at SoFi Stadium on September 6, 2025. Justin Herbert threw for 318 yards and 3 touchdown passes in a wire-to-wire performance.

Q2: How many passing yards did Justin Herbert throw for against the Chiefs in 2025?

Herbert finished with 318 yards in Week 1 and 210 yards in Week 15, combining for 528 passing yards across both games. He threw 4 touchdown passes against Kansas City’s defense while completing over 68% of his attempts across the series.

Q3: How many sacks did the Chargers defense get on Patrick Mahomes in the 2025 season series?

The Chargers registered 7 total sacks against Mahomes across both games — 2 in Week 1 and a dominant 5 in the Week 15 road win at Arrowhead. Those 5 sacks in December also came with 2 interceptions and a 51.5 passer rating surrendered.

Q4: Who were the rushing leaders in the Chargers vs Chiefs matchups?

Kansas City edged Los Angeles on the ground in Week 1 (98 vs 90 yards), with Mahomes adding a rushing touchdown via scramble. The Chargers completely reversed that trend in Week 15, outrushing the Chiefs 94–49 and controlling ball possession for nearly 35 minutes.

Q5: Did the Chargers sweep the Chiefs in the 2025 NFL regular season?

Yes — the Los Angeles Chargers went 2–0 against Kansas City in the 2025 regular season, winning 27–21 at home in Week 1 and 16–13 on the road at Arrowhead in Week 15. It marked one of the most complete season series wins over the Chiefs in recent memory.

Q6: What was Patrick Mahomes’ passer rating against the Chargers in Week 15?

Mahomes posted a 51.5 passer rating in the Week 15 matchup at Arrowhead — one of his lowest single-game marks of the 2025 season. He finished 19 of 33 for 211 yards with 0 passing touchdowns and 2 interceptions, unable to find answers against Los Angeles’ aggressive defensive front.

Cast Your Vote — Who Was the Series MVP?

The stats are on the table. Herbert’s arm, Johnston’s route-running, Dicker’s boot, and a defensive front that turned Arrowhead into a house of horrors for Mahomes — this was a total team sweep, not a one-man show.

Now it’s your turn. Drop your Chargers–Chiefs Series MVP pick in the comments below, and tell us: do you think Kansas City gets it back in 2026, or has Los Angeles genuinely found their formula to beat this dynasty? The debate is open — let’s hear it.