Biggest NBA Underdogs
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Examining the Biggest Betting Underdogs To Ever Win The NBA Championship

Parity is at an all-time high in the NBA, so betting on championship futures is a role of the dice in the modern game. A preseason title favorite could be a part of the NBA Finals, or face a first round exit as championship caliber squads litter the landscape. NBA futures odds rise and fall as with teams' form as the season rolls, so finding the right underdog to bet can turn into a lesson in futility. However, with four fresh young teams in the Conference Finals this year, one squad has a chance to make hardwood history. 

The Indiana Pacers could enter the annals of NBA history. Should the Pacers overcome the New York Knicks in the Eastern Conference Finals, and go on to defeat the Western Conference representative to win the title, they would become the largest NBA underdog to ever win the NBA Championship. At +5000 preseason odds, the underdog Pacers would nearly double Golden State's 2014 run of +2800 odds. Thanks to sportsoddshistory.com, we have NBA championship betting odds dating back to the 1984-85 season when the Los Angeles Lakers won as +200 favorites. So which other teams in the NBA’s storied history have shaken up the pecking order and made their way to championship glory?

What Team Was The Biggest Underdog To Win The NBA Championship?

Biggest Underdogs To Win NBA Championship
Year Team Sportsbook Odds
2014-15 Golden State Warriors +2800
2010-11 Dallas Mavericks +2000
2018-19 Toronto Raptors +1850
2022-23 Denver Nuggets +1800
2003-04 Detroit Pistons +1500
1993-94 Houston Rockets +1200

2014-15 Golden State Warriors

Representing the birth of a dynasty that has forever changed the way basketball is played, the 2014-15 Golden State Warriors top our list and it wasn’t even close. The Warriors were coming off a fairly successful campaign in 2013-14 when they pushed the Los Angeles Clippers to seven games in the first round but to consider them as title contenders at that time, even with everything we know now, was a bit much.

That’s because LeBron James had taken his talents back to Cleveland to team up with Kyrie Irving and Kevin Love to form another Big 3. Cleveland opened that season as the championship favorite but lost in six games in the Finals to Golden State, which ended the regular season with the best record in the NBA. The value was all but gone after this NBA championship run as the Warriors opened as odds-on title favorites for the next four seasons.

2010-11 Dallas Mavericks

The Dallas Mavericks may not have the championship pedigree like the Lakers or Celtics but ever since the arrival of Dirk Nowitzki, the Mavs have been a staple in the Western Conference playoffs. They’ve seen the highs (winning the championship in 2011) to the lows (losing as a No. 1 seed to the Warriors in 2008) and everything in between. But for one magical season, they proved the doubters wrong.

For a back story, by the time the 2010-11 season came along, there was overall Mavericks fatigue on their championship odds. Bettors had been burned way too many times by an underachieving Dallas squad like in 2006 when the Mavs squandered a 2-0 series lead in the NBA Finals to the Heat. Well, they exacted revenge in 2011 and Nowitzki kicked to the curb the stigma of European basketball player softness.

The fact that the Mavericks did it over the publicly loathed Miami Heat with LeBron James, Dwyane Wade and Chris Bosh just made it that much sweeter for bettors who cashed in on a 20-1 ticket.

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2018-19 Toronto Raptors

Also known as the season when Kawhi Leonard cemented his place in the Basketball Hall of Fame, it makes sense the Toronto Raptors had such long odds to win the championship for the 2018-19 season. The Warriors were just coming off back-to-back championships and opened the season at -150 odds to three-peat. But like any NBA championship run, you can always point to injuries that lead you down a rabbit hole of “what if” questions.

The Raptors “lucked” out by getting to face a depleted Warriors team in the NBA Finals that was missing Kevin Durant for all but 10 minutes of Game 5 and lost Klay Thompson to an injury in the following game. That being said, not enough credit is given to the Raptors for beating the teams they did prior to the Finals.

They edged the Sixers in the second round on a Game 7 buzzer-beater and rallied vs the Bucks after going down 2-0 in the Eastern Conference final where their odds were up to +2000 to win the championship at some sportsbooks. The Raptors of the past would’ve folded like a lawn chair but Leonard carried it home for them and Toronto got its first major sports championship since 1993 (Go Blue Jays!).

2022-23 Denver Nuggets

Nikola Jokic led the Denver Nuggets to the 2022-23 NBA Championship after being long +1800 preseason underdogs. After the finishing the regular season 53-29 SU and taking home the No.1 seed, the Nuggets blasted through the Western Conference, losing just three games, and sweeping Lebron James' Los Angeles Lakers in the Western Conference Finals before taking home the title with a gentleman's sweep of the Miami Heat. 

Jokic was unstoppable averaging 30 points, 13.5 rebounds and 9.5 assists in 20 playoff games to earn his first championship and the NBA Finals MVP award. Kentavius Caldwell-Pope proved to be a key off-season addition for the Nuggets, with Aaron Gordon also playing a huge role on both ends of the floor in their championship victory. Of course, the unflappable scoring escapades of Jamal Murray played a huge part. As the Canadian put up 26 points and 7 rebounds a night while playing a two-man game with Jokic that perplexed opposing defenses. 

2003-04 Detroit Pistons

There was a time when a 78-74 final score was common in the NBA playoffs and no team personified that era more than the Detroit Pistons. The Pistons might be the best success story of any of the examples listed because of their roster. Not one player on the team got NBA MVP votes or was first-team All-NBA that season but what they did have was the best defense in the league.

The Pistons smothered teams with Ben Wallace and Rasheed Wallace in the paint and tough guards in Chauncey Billups and Richard Hamilton who complemented each other perfectly. Going into the season, the Pistons had +1500 odds to win the championship and were the third-likeliest team, based on betting odds, to come out of the East behind the New Jersey Nets and Indiana Pacers.

Even going into the NBA Finals, they weren’t given much respect considering they still hold the record for longest championship odds entering the Finals at +500. That’s because they were opposing the Lakers, who had three-peated from 2000 to 2002. The Lakers had peak Shaquille O’Neal and Kobe Bryant along with Gary Payton and Karl Malone and were trying to regain championship glory.

Long story short: the Lakers got run out of the gym in the opener, kept it interesting by winning Game 2 in overtime ,and never made it back to LA after dropping three straight in Detroit.

1993-94 Houston Rockets

Being that it was the first NBA season without Michael Jordan with the Bulls, this might have been one of the more wide-open NBA championship races of all time. At least four teams could lay claim to being the best team in the league going into the season: the Phoenix Suns, Seattle Supersonics, New York Knicks and Houston Rockets. Out of the four, the Rockets had the longest odds but they had the best player in Hakeem Olajuwon.

The Dream had an incredible season by winning both MVP and Defensive Player of the Year, something that’s only been done two other times in NBA history (Michael Jordan, 1988, and Giannis Antetokounmpo, 2020). The Rockets may have had doubters going into the season but they were all but gone after Houston finished the season 58-24 SU and had +600 odds going into the playoffs.

That being said, if the Knicks’ John Starks hadn’t gagged so badly in Game 7 of the NBA Finals, we might be talking about the New York Knicks in a whole new light compared to the mockery they’re subjected to today.

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