We have seen 57 Super Bowls in NFL history (not including the championship games before the Super Bowl existed, of course), and some were definitely better than others.

There have been some blowouts, some boring games with very little scoring and then some that just aren’t very memorable at all.

But perhaps the Super Bowls that stand out the most are the ones that featured major upsets.

Here are the five greatest upsets in Super Bowl history.

5. Kansas City Chiefs over Minnesota Vikings (Super Bowl IV)

The Chiefs entered Super Bowl IV as massive 12-point underdogs against a dominant Vikings squad that went 12-2 during the regular season. Minnesota’s defense, led by defensive linemen Jim Marshall, Alan Page and Gary Larsen, was so suffocating that it earned the nickname “The Purple People Eaters.”

Not many expected Kansas City, which had three different quarterbacks start for the club during the regular season, to have much of a chance.

However, the Chiefs went on to shock the Vikings with a 23-7 victory highlighted by a 46-yard touchdown pass from Len Dawson to Otis Taylor to seal the deal.

Dawson went 12-for-17 with 142 yards, a touchdown and an interception and was named the Super Bowl MVP. But in spite of Dawson getting the hardware, it was Kansas City’s defense that truly stole the show, holding Minnesota scoreless in the first half and allowing just 239 total yards for the game.

4. Denver Broncos over Green Bay Packers (Super Bowl XXXII)

Back in January 1998, Brett Favre was the toast of the NFL. He was in the final campaign of a three-year stretch of three consecutive MVP awards and had thrown 35 touchdowns that season.

The Packers went 13-3 during the regular season that year and had romped their way to the Super Bowl, hammering both the Tampa Bay Buccaneers and San Francisco 49ers. They looked primed for a repeat after beating the New England Patriots for a Super Bowl title the winter prior.

But John Elway and the Broncos stood in the way.

Denver was an 11-point underdog, but it ultimately defeated Green Bay by a score of 31-24 thanks to 157 yards and three touchdowns from dominant running back Terrell Davis.

Elway certainly didn’t play well, going 12-for-22 with 123 yards and an interception, but his “Helicopter Run” in which he scrambled before being hammered by multiple Packers defenders inside the 5-yard line in the third quarter is etched into Super Bowl lore.

3. New England Patriots over St. Louis Rams (Super Bowl XXXVI)

The beginning of a dynasty.

Not many gave the young Tom Brady and the Patriots much of a chance going up against a Rams team that was known as “The Greatest Show On Turf.”

Kurt Warner. Marshall Faulk. Isaac Bruce. Torry Holt.

St. Louis was absolutely loaded with offensive weapons, and yet, New England’s defense held the Rams to just 17 points in a three-point victory.

Warner and Co. made a late push, rallying back from a 17-3 fourth-quarter deficit to tie the score, but Adam Vinatieri kicked the game-winning field goal as time expired, and the legend of Brady was born.

Brady wasn’t phenomenal in the win, going 16-for-27 with 145 yards and a touchdown, but he outplayed Warner, who threw a pair of picks in the contest.

The Pats entered the game as 14-point underdogs. They left with hardware.

2. New York Jets over Baltimore Colts (Super Bowl III)

Behind some superb play from quarterback Earl Morrall, the Colts were the most dominant team in the NFL back in 1968. But they were about to have their dreams shattered.

The Colts entered Super Bowl III as enormous 18-point favorites over the Jets, but that didn’t stop New York signal-caller Joe Namath from guaranteeing a win.

Not only did the Jets win, but it wasn’t even that difficult.

Namath and Co. jumped out to a 16-0 lead and cruised to a nine-point victory in one of the most famous upsets in the history of sports.

Namath had a decent showing, going 17-for-28 with 206 yards.

Where was Johnny Unitas, you ask? Unitas didn’t play for most of the season due to an arm injury, but he did ultimately relieve Morrall in the fourth quarter against the Jets because Morrall was struggling so mightily. Unitas ended up going 11-for-24 with 110 yards and an interception.

Some wonder if the outcome would have been different had Unitas played the whole game, but based on his fourth-quarter performance, it’s hard to imagine the result would have changed.

1. New York Giants over New England Patriots (Super Bowl XLII)

In terms of point spreads, the Jets’ win over the Colts was technically a bigger upset win. So was the Patriots over the Rams in 2001-02. But given the circumstances, it’s hard to argue against the Giants putting together the biggest Cinderella run in NFL history back in the 2007-08 campaign.

New York made the playoffs as a Wild Card team and plowed through the NFC gauntlet of the Tampa Bay Buccaneers, Dallas Cowboys and Green Bay Packers before facing down Tom Brady and the New England Patriots in the Super Bowl.

The Giants entered the contest as 12-point underdogs, and it’s possible the only reason the spread wasn’t larger was because Big Blue had played the Patriots very tough in a late regular-season meeting.

But here’s the thing: New England was undefeated. Yes, the Pats were 18-0 and were on track to become the first team in NFL history to complete a 19-0 campaign. Just about everyone—including Giants fans themselves—assumed the Patriots would do it.

However, Eli Manning and the G-Men had other plans

Manning orchestrated a 17-14 win for the Giants, with his key moment coming on a third-down play on New York’s final drive in the fourth quarter. Somehow, Manning escaped what looked to be a sure sack, rolled out and fired a laser down the middle of the field to rarely-used wide receiver David Tyree, who snared the ball with his hands…and his helmet.

Manning would later cap off the drive by tossing a touchdown pass to Plaxico Burress. The Giants would stop the Pats on downs the ensuing possession, stunning every football player, fan and media pundit on the planet.

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