Best Boxing Record: These 20 Fighters Never Lost

While there have been many boxing legends since the sweet science became a globally recognized sport, only a select few of the world's very best can boast that they have one of the best boxing records of all time.

And considering there have only been a few dozen fighters who have ended their boxing careers with an undefeated record, we thought it was only right to give them the shine they deserve, and highlight the best boxing record that exists in the sport. In fact, the 20 fighters we've included on this list have a combined professional boxing record of 631-0-7, with 460 KO victories. How's that for impressive?

Although we didn't include every single undefeated boxer on this list, our opinion is that these 20 boxers have the most impressive boxing records that exist. They combine legends of the sport and active superstars alike — from two genders, many different countries, and endless different backgrounds. But one thing brings them all together: none have ever lost a professional boxing fight. 

Best Boxing Record: 20 Examples of Undefeated Excellence

1. Packey McFarland (74-0-5, 50 KO’s)

Crazily enough, the fighter with the best boxing record in history never fought for a world title. That fighter is Packey McFarland, an American boxer who fought in the lightweight and welterweight divisions from 1904 to 1915. 

McFarland is first on our list because no fighter has ever recorded more wins in their professional boxing career without sustaining a loss than him. Is it worth noting, however, that there's some dispute about McFarland's actual record. While his official record states that he's 70-0-1 with 50 KO's, McFarland has an unofficial record of 106-1-6. 

Yet, because most of the other undefeated fighters on this list lost in their amateur careers, we thought it was only fair to count McFarland's official record. Either way, McFarland might be the most legendary boxer most boxing fans have never heard of.

2. Ricardo López (51-0-1, 38 KO’s)

The Mexican fighter with the best boxing record is Ricardo López, who fought from 1985 to 2001.

Across his undefeated career, López was a two-weight world champion, having held the WBC mini flyweight title from 1990 to 1998 — defending it against 21 opponents —  the WBA and WBO mini flyweight titles for two years, and the IBF junior flyweight title from 1999 until he retired.

López is one of very, very few fighters who turned pro without having ever lost an amateur bout. Therefore, López never lost a fight in his entire boxing career; solidifying him as one of the best boxers in the sport's iconic history. 

3. Floyd Mayweather Jr (50-0, 27 KO’s)

The next legend on our best boxing record list is none other than Floyd “Money” Mayweather Jr, who competed as a professional from 1996 to 2017 and won 15 major world championships from super featherweight to light middleweight across his infamous career. 

Mayweather is often referred to as the best defensive boxer in history, and his statistics have proven him to be one of the most accurate punchers in boxing history as well. Not to mention that “Money” Mayweather might be the biggest money draw in the sport, having amassed $1.67 billion in revenue throughout his career. 

Who can blame Mayweather Jr for wanting to preserve after that perfect 50-0 career?

4. Rocky Marciano (49-0, 43 KO’s)

Rocky Marciano is a global icon for being the inspiration for the Rocky movies, and also holds the best boxing record of all time for a heavyweight.

The American professional boxer competed from 1947 to 1955, held the world heavyweight title from 1952 to 1956, and is currently the only heavyweight boxer to ever finish his career with an undefeated record.  

What's more, Marciano remains the only boxer to have knocked out every opponent he ever faced for the world heavyweight title. That (and his undefeated record) alone is more than worthy for a movie franchise based on him.

5. Joe Calzaghe (46-0, 32 KO’s) 

Another criminally underrated fighter is Joe Calzaghe, a Welsh professional boxer who competed professionally from 1993 to 2008 and held multiple world championships in two weight classes (super middleweight and light heavyweight).

Having held his WBO title for over 10 years, Calzaghe is the longest-reigning super middleweight world champion in boxing history. He also shared the division record of defenses with another fighter that's soon coming up on this list. 

Is Joe Calzaghe the best European boxer of all time? His boxing record would suggest so. 

6. Terence Crawford (40-0, 31 KO’s)

The moment @terencecrawford became UNDISPUTED CHAMPION OF THE WORLD 🏆🏆🏆🏆

The referee calls a stop to the fight in the 9th, as Terence Crawford defeats Errol Spence Jr to sit alone at the top of the division. #SpenceCrawford pic.twitter.com/b2yIkj8QAr

— SHOWTIME Boxing (@ShowtimeBoxing) July 30, 2023

The first active fighter on our best boxing record list is Terence “Bud” Crawford — the reigning, undisputed champion of the welterweight division who currently holds the WBA (Super), WBC, and WBO titles. 

Crawford had an iconic fight against Errol Spence Jr in July 2023. And after knocking Spence Jr out, Crawford became the first male two-division undisputed champion of the four-belt era. He is currently the pound-for-pound best boxer in the world, and boasts an undefeated record to boot. 

7. Sven Ottke (34-0, 6 KO’s)

Although his knockout record isn't the most impressive, the undefeated record that Sven Ottke — a German professional boxer who competed from 1997 to 2004 — boasts certainly is.

As we mentioned earlier, Ottke defended his super-middleweight title against 20 boxers, which ties him with Joe Calzaghe for the division record. 

Considering that they fought at the same time in the same era, it's a shame we never saw Ottke and Calzaghe go toe to toe in the ring. Yet, because they didn't, each managed to make this list.

8. Tyson Fury (34-0-1, 24 KO’s)

Although there has been some dicey moments for him, the British boxer Tyson “The Gypsy King” Fury has managed to remain undefeated in his career thus far. 

Fury is the lineal heavyweight champion of the world, and has held the WBC heavyweight title since 2020. Yet, given the match Fury has scheduled against another undefeated heavyweight on this list in a couple weeks, he may not be undefeated for long.

9. Andre Ward (32-0, 16 KO’s)

Next up on our list is Andre “Son of God” Ward, an American boxer who competed from 2004 to 2017. Across his undefeated career, Ward held multiple world championships in two weight classes, including unified super middleweight titles and unified light heavyweight titles.

While perhaps not the most exciting boxer of all time, Ward's impeccable record speaks for itself. This man is a legend in the sport, and deserves his respect.

10. Devin Haney (31-0, 15 KO’s)

A Masterpiece @Realdevinhaney won every round in what could only be described as domination.

He becomes a 2 division champion and the king of 140#HaneyPrograis pic.twitter.com/VOCyveViez

— DAZN Boxing (@DAZNBoxing) December 11, 2023

Another undefeated champion that we get to witness chasing greatness right now is Devin Haney — an American boxer that is only 25 years old, yet has held multiple world championships in two weight classes.

The current undisputed super lightweight produced a masterclass against Regis Prograis in December 2023. Haney is already considered one of the pound-for-pound best boxers in the world, and has many more big-time fights ahead of him. Only time will tell whether he can keep his undefeated record throughout it all — especially if he ends up fighting the next man on our list. 

11. Gervonta Davis (29-0, 27 KO’s)

Gervonta “Tank” Davis solidified himself as one of boxing's biggest active superstars when he knocked out Ryan Garcia last year. 

“Tank”  has held multiple world championships in three weight classes, including the WBA lightweight title since 2019. While he has some issues outside of the ring, there's no question that, when Davis goes toe to toe against an opponent, they're almost guaranteed to crumble. 

While it doesn't seem likely we'll see Davis and Haney fight in the near future, perhaps that will happen down the line sometime. We'd certainly love to see it.

12. Mihai Leu (28-0, 10 KO’s)

Mihau Leu — also knows as Michael Loewe —  is a Romanian professional boxer who competed from 1991 and 1997, and held the WBO welterweight title in 1997.

Unfortunately, Leu retired after just one title defense due to an injury he sustained outside of the ring. Yet, because he ended his career when he did, Leu became just the third European boxer to retire as an undefeated world champion.

13. Edwin Valero (27-0, 27 KO’s)

Edwin Valero is one of the most terrifying fighters in boxing history. The Venezuelan professional boxer competed from 2002 to 2010, and knocked out every single opponent he ever faced.

Valero was an undefeated world champion in two weight classes, including the WBA super featherweight title and the WBC lightweight title.

Valero's life ended in tragedy, after he killed himself in jail after being arrested on suspicion of killing his wife. Yet, that doesn't diminish from the incredible accomplishments that the Venezuelan produced in the ring. 

14. Naoya Inoue (26-0, 23 KO’s)

HE'S DONE IT AGAIN 👑

NAOYA INOUE. 2X UNDISPUTED CHAMPION. pic.twitter.com/eMkqg8aqEg

— Top Rank Boxing (@trboxing) December 26, 2023

Naoya “The Monster” Inoue is another undefeated active boxer who has cemented himself as a pound-for-pound great. 

Inoue is a four-division world champion, and only the second male boxer (after the aforementioned Terence Crawford) to become the undisputed champion in two different weight classes in the four-belt era. 

Even though he isn't the biggest boxer, Inoue's insane power makes him nearly impossible to deal with in the ring — proven by his best boxing record. 

15. Laila Ali (24-0, 21 KO’s)

The first female on our best boxing records of all time list is Laila Ali, an American professional boxer who competed from 1999 to 2007, and who is the daughter of the boxing GOAT, Muhammad Ali. 

Ali ended her career holding the WBC, WIBA, IWBF and IBA female super middleweight titles, along with the IWBF light heavyweight title.

Laila Ali is largely considered one of the greatest female boxers of all time; and considering that no other female has an undefeated record with as many wins as Ali, that would seem to cement her claim. 

16. Natascha Ragosina (22-0, 13 KO’s)

Another female boxing legend is Natascha Ragosina, a Russian professional boxer who spent the majority of her career ranked as the top female super middleweight in the world.

 At the time of Ragosina's retirement, she held all major female super middleweight titles and two heavyweight belts. Along with Ali, Ragosina has to be considered one of the greatest female boxers of all time. She certainly has one of the best boxing records. 

17. Oleksandr Usyk (21-0, 14 KO’s)

Oleksandr Usyk is another active undefeated fighter who hails from Ukraine. He has held multiple world championships in two weight classes, including the IBO heavyweight title since 2021.

Usyk will be fighting the aforementioned Tyson Fury on February 17, 2024, with the winner becoming the lineal and undisputed heavyweight champion of the world. And considering both heavyweights haven't lost, one of their undefeated record's has got to go!

18. Michelle Aboro (21-0, 12 KO’s)

Another legendary female boxer is Michelle Aboro, a British professional boxer who competed from 1995 to 2001.

Aboro retired an undefeated world champion, having held the WIBF super-bantamweight title at the time she called it a career. Aboro was also an outspoken advocate for womens boxing, and is considered instrumental in giving female boxers the platform they currently have. 

Yet, even is she wasn't such an incredible person, Aboro's undefeated boxing record would still make her a boxing icon. 

19. Dmitry Bivol (21-0, 11 KO’s)

Dmitry Bivol became a global phenomenon when he defeated Canelo Álvarez back in May 2022. Since then, the Russian professional boxer has followed up with a few more impeccable performances, and kept his claim on the WBA and IBO (Super version) light heavyweight title. 

It seems that we'll soon see Bivol putting his undefeated record to the test, when he enters the ring against the final fighter on our best boxing record list later this year. 

20. Artur Beterbiev (20-0, 20 KO’s)

Dmitry Bivol is up for the challenge against Artur Beterbiev 👀 pic.twitter.com/u9D01jAjwF

— ESPN Ringside (@ESPNRingside) January 22, 2024

Artur Beterbiev might be the most terrifying active fighter in boxing today. The Russian Canadian boxer holds an undefeated record with a 100% knockout rate, and recently showed his masterful skillset against Callum Smith.

Beterbiev is a unified champion in the light-heavyweight division, having held the IBF title since 2017, the WBC title since 2019, and the WBO title since 2022.

It appears that Beterbiev and the aforementioned Bivol will be facing off later this year — so it's a good thing we're doing this list now. 

And there you have it: the 20 best boxing records of all time. Regardless of what these various boxers were able to endure across their careers, they all deserve immense credit for not having a single night where their record received a lone blemish. 

While there's no shame in losing when one is fighting against the very best boxers in the world, the fact that these 20 boxers have managed to come out unscathed is a testament to their collective greatness.