New England, after finishing the regular season with an 11–5 record, advanced to their 11th Super Bowl appearance, their third in a row, and their ninth under the leadership of head coach Bill Belichick and quarterback Tom Brady.

[1] The game marked the first Super Bowl in which neither team had a touchdown through the first three quarters, as the Patriots and the Rams fought to a 3–3 tie entering the fourth.

In the final quarter, New England scored 10 unanswered points to claim victory, including the game's only touchdown by running back Sony Michel.

The broadcast of the game on CBS, along with the halftime show headlined by U.S. pop group Maroon 5, saw the smallest Super Bowl audience in 10 years.

[18][19][20] The show competed with a "Super Saturday Night" concert held by DirecTV at a temporary venue near Atlantic Station, headlined by the Foo Fighters and featuring Roger Taylor, Zac Brown, Tom Morello, Perry Farrell and Dave Koz as special guests.

The team's #3 receiver, Cooper Kupp, suffered a season ending injury after catching 40 passes for 566 yards in 8 games, forcing Goff to rely heavily on other targets like Gerald Everett (32 receptions) and Josh Reynolds (29).

On special teams, JoJo Natson returned 26 punts for 280 yards, while kicker Greg Zuerlein made 87.1% of his field goals, including a franchise postseason record 57-yard kick to defeat the Saints in overtime in the NFC championship game.

Pro Bowl linebacker Cory Littleton led the team in total tackles with 125, while also picking up four sacks, three interceptions and blocking two punts.

From there, both teams took turns taking the lead, until the Chiefs forced overtime with a 39-yard field goal by Harrison Butker to tie the game 31–31.

The Patriots won the coin toss to start their offense for overtime, where Rex Burkhead scored a two-yard touchdown to win the game.

Though Robey-Coleman knocked Lewis to the ground early and the pass fell incomplete, the obvious penalty was not called and the Saints' Wil Lutz kicked a 31-yard field goal to take the lead.

Although the Rams lost the coin toss and had to start their defense for overtime, Brees threw an interception on the Saints' first drive and Zuerlein kicked a 57-yard field goal to win the game.

[42] Super Bowl LIII featured record setting age differences between each team's starting quarterbacks and head coaches, pitting 41-year-old Brady against 24-year-old Jared Goff, as well as 66-year-old Belichick against 33-year-old Sean McVay.

[50] Boston and Los Angeles teams of other professional sports have met in the championship rounds, popularizing the "Beat L.A." chant and the hashtag "#BeatLA".

[53] The Boston Red Sox and Los Angeles Dodgers faced off in the 2018 World Series, and with the Patriots and Rams meeting in Super Bowl LIII, it was only the second time in 50 years that two cities' MLB and NFL teams have competed for the league title in the same season (or calendar year), the first time being in 1969 when the New York Jets and Baltimore Colts competed for Super Bowl III in January 1969 followed by the 1969 World Series featuring the New York Mets and Baltimore Orioles.

[54][55] The Patriots faced another Los Angeles-based team in the same playoffs, the Chargers in the divisional round, en route to their Super Bowl meeting with the Rams.

[68] Walt Disney Studios Motion Pictures aired a half-minute long Teaser for highly anticipated Avengers: Endgame.

[70] For the first time in its history, the NFL itself won USA Today's Super Bowl Ad Meter survey determining the best commercial aired during the game, with an advertisement launching a campaign celebrating its 100th season.

[76] In New Orleans, whose Saints had lost the NFC Championship in part because of the blown call, ratings were down 51% compared to Super Bowl LII as Louisianans boycotted and refused to watch the game.

SiriusXM carried the game in eight languages and hometown broadcasts from Boston's WBZ-FM and Los Angeles's KSPN and KCBS-FM, along with the main feed on Sirius XM NFL Radio.

[85][86] In Australia and New Zealand, ESPN Australia aired an ESPN-produced broadcast of the game that featured the Monday Night Football commentary crew of Joe Tessitore, Jason Witten and Booger McFarland (McFarland was in the booth rather than the Booger Mobile, the controversial sideline vehicle he used that was abandoned before the end of the 2018 MNF season).

Additionally in Australia the game was broadcast for the second year in a row by Melbourne Radio Station 1116 SEN and commentated by Gerard Whateley.

[89][90] The musical artists who agreed to perform at the show—including Gladys Knight, Maroon 5, Travis Scott, and Big Boi—were criticized by media outlets, other artists and members of the public for performing at Super Bowl LIII because of the NFL's alleged blacklisting of Colin Kaepernick for protesting police brutality by kneeling during the pre-game national anthem.

[102] Bernice King—the daughter of Martin Luther King Jr.—and civil rights movement leaders Andrew Young and John Lewis participated in the coin toss ceremony.

[107] The full clip of the "Sweet Victory" song, including a dedication to Hillenburg, was played inside the stadium prior to the game.

But on the next play, Brady was strip-sacked by Rams defensive end John Franklin-Myers, but Patriots center David Andrews recovered the fumble.

After forcing another three-and-out to start the second quarter, the Patriots managed to drive 39 yards in seven plays, most of which came from another 25-yard completion from Brady to Edelman.

New England elected to go for a 4th-and-1 conversion instead of a field goal, but Brady's pass to Gronkowski was broken up by safety John Johnson, turning the ball over on downs with 1:13 left in the half.

On the first play of Los Angeles' next drive, Goff completed a 19-yard pass to Cooks and later converted a 3rd-and-9 with an 11-yard throw to wide receiver Josh Reynolds.

On the morning of February 5, the Patriots celebration duck boat parade was held in Boston, starting at Boylston Street and ending at City Hall Plaza.