Justin Mayweather Jones is an American boxer. He is also the younger half brother of Floyd Mayweather Jr.
He was born as Justin Allen Jones. He learned about his famous boxing family when he was a young adult.
Justin later trained with Floyd Mayweather Sr. and Jeff Mayweather. He built an unbeaten record but stayed outside the main spotlight.
His story includes family discovery, hard training, and a quiet boxing career. It also shows the weight of carrying the Mayweather name.
Quick Bio
| Detail | Information |
|---|---|
| Full name | Justin Mayweather Jones |
| Birth name | Justin Allen Jones |
| Known as | Justin Jones and Justin Mayweather |
| Date of birth | April 21, 1987 |
| Age in 2026 | 39 years old |
| Birthplace | Grand Rapids, Michigan, United States |
| Nationality | American |
| Profession | Professional boxer |
| Height | About 5 feet 9 inches or 175 cm |
| Fighting weight | About 147 to 154 pounds |
| Boxing divisions | Welterweight and light middleweight |
| Professional record | 7 wins and no losses |
| Knockout wins | 5 |
| Father | Floyd Mayweather Sr. |
| Half brother | Floyd Mayweather Jr. |
| Uncles | Roger Mayweather and Jeff Mayweather |
| Relationship status | Kept private |
| Estimated net worth | About $100,000 to $500,000 |
Who Is Justin Mayweather Jones?
Justin Mayweather Jones is part of a famous American boxing family. Still, his name is less known than his relatives.
He is the son of former boxer and trainer Floyd Mayweather Sr. He shares the same father with Floyd Mayweather Jr.
Justin entered professional boxing in 2013. He fought in the welterweight and light middleweight divisions during his career.
He won all seven of his reported professional fights. Five of those wins came through a knockout or technical knockout.
However, his career never reached major title level. Long breaks between fights also slowed his progress and public growth.
Justin Mayweather Jones’ Early Life
Justin was born on April 21, 1987. Reports commonly place his birth in Grand Rapids, Michigan.
He grew up using the name Justin Jones. He did not grow up as a public member of the Mayweather family.
Justin developed an interest in boxing before meeting his biological father. This interest later gave them a strong shared link.
Little verified information exists about his mother. Justin has also kept most details about his childhood and education private.
This private background makes his story different from Floyd Jr.’s life. Floyd grew up around boxing from a very young age.
How Justin Jones Became Justin Mayweather Jones
Justin did not always know that Floyd Mayweather Sr. was his biological father. He learned about the connection around age 19.
A DNA test completed in 2007 confirmed the family link. Justin was then recognized as Floyd Sr.’s younger son.
The result also made him the paternal half brother of Floyd Mayweather Jr. It connected him with a major boxing family.
Justin later used Mayweather as part of his public name. Boxing records still list his birth name as Justin Allen Jones.
The discovery changed his family life and boxing path. It gave him access to trainers with years of professional experience.
Justin Mayweather Jones’ Famous Boxing Family
Justin’s father, Floyd Mayweather Sr., fought as a welterweight. He later became a respected defensive boxing trainer.
Floyd Sr. trained several well known fighters. His students included Floyd Mayweather Jr., Oscar De La Hoya, and Chad Dawson.
Justin’s uncle Roger Mayweather won world titles in two divisions. Roger also played a major role in Floyd Jr.’s career.
His other uncle, Jeff Mayweather, competed as a professional boxer. Jeff later became a trainer and worked closely with Justin.
Justin also has paternal sisters, including Fatimah, Detricia, and Fannie. Another younger sister named Nalai has been reported.
Justin Mayweather Jones’ Professional Boxing Career
Justin made his professional debut in July 2013. He stopped Rick Ogden during the second round in Grand Rapids.
He returned in 2016 after a long break. Justin quickly defeated Albert Lee III and Alfred Tisdale Jr.
Another gap followed before Justin resumed fighting. He defeated Luis Gonzalez over four rounds during 2018.
Justin later stopped Antonio Gonzalez in 2019. He then defeated Christian Foster by an early stoppage in Jamaica.
His last recorded fight came in May 2022. Justin beat Luis Acevedo Sosa and moved to seven wins without defeat.
Justin Mayweather Jones’ Boxing Style and Training
Justin trained under Floyd Mayweather Sr. and Jeff Mayweather. Their lessons focused on timing, balance, defense, and clean counters.
He used the famous shoulder roll defense linked with the Mayweather family. This move helps a boxer block or avoid punches.
Justin often stayed calm inside the ring. He waited for openings and answered attacks with fast, direct shots.
His available record lists five knockout wins from seven fights. He also won nearly every recorded round during his short career.
Yet he never fought beyond six rounds. He did not face the level of rivals required for major rankings or championships.
Justin Mayweather Jones and Floyd Mayweather Jr.
Justin and Floyd Mayweather Jr. share the same father. Floyd Jr. is about ten years older than his younger brother.
Their careers followed very different roads. Floyd became a five division champion and ended his professional career with 50 wins.
Justin fought only seven professional bouts. Most of his contests took place away from major American television cards.
Justin trained at the Mayweather Boxing Club and appeared with family members. However, he received little major promotion beside Floyd.
He also did not compete on known Mayweather Promotions events. Neither brother has publicly explained this career separation in detail.
Justin Mayweather Jones’ Personal Life and Net Worth
Justin keeps his private life away from wide media coverage. Clear details about his wife, partner, or children are unavailable.
He also maintains a quieter public image than Floyd Jr. Most available coverage focuses on his family connection and boxing record.
Justin’s exact career earnings have not been released. Tapology lists no disclosed earnings from his seven professional contests.
His net worth can only be estimated. A broad range between $100,000 and $500,000 may reflect boxing and private income.
This estimate should not be confused with Floyd Jr.’s wealth. Justin fought on smaller cards and did not earn major championship purses.
Where Is Justin Mayweather Jones Now?
Justin has not recorded another professional fight since May 2022. His long absence suggests that his active career has likely ended.
He remains unbeaten with seven wins and five stoppages. That record gives his short boxing journey a positive final result.
However, Justin never fought for a major belt. He also did not test himself against ranked fighters or established champions.
His story still attracts interest because of his late family discovery. Fans also remain curious about his quiet bond with Floyd Jr.
Justin Mayweather Jones built his own small place within the Mayweather boxing legacy. He chose a far more private road.
FAQ’s
How old is Justin Mayweather Jones?
Justin Mayweather Jones was born on April 21, 1987. He turned 39 years old in April 2026.
Is Justin Mayweather Jones Floyd Mayweather Jr.’s real brother?
Yes. Justin is Floyd Jr.’s younger paternal half brother. A DNA test confirmed that Floyd Mayweather Sr. is Justin’s father.
What is Justin Mayweather Jones’ boxing record?
Justin has a reported professional record of seven wins and no losses. Five of his seven victories came by stoppage.
How tall is Justin Mayweather Jones?
BoxRec lists Justin at about 175 centimetres tall. That measurement equals roughly 5 feet 9 inches.
What is Justin Mayweather Jones’ estimated net worth?
His estimated net worth is around $100,000 to $500,000. His real wealth and boxing earnings have not been publicly detailed.
