The question of how old was floyd mayweather when he retired has a two-part answer: he was 38 years old when he first retired in September 2015, and 40 when he walked away for good after his 2017 comeback against Conor McGregor.
That first retirement came with a 49-0 record — matching Rocky Marciano — and it made him one of the few champions to leave the sport undefeated. But pinpointing the exact answer to how old was floyd mayweather when he retired is trickier than it looks, because his career had more than one farewell.
The confusion is understandable. Mayweather "retired" multiple times, unretired, and then returned for lucrative exhibition bouts that technically aren't professional fights. That overlap is exactly why the answer to how old was floyd mayweather when he retired depends on which exit you count.
This guide breaks down every retirement date, the age he was at each one, and how to verify the numbers yourself against official records, so you can answer how old was floyd mayweather when he retired with confidence.
The Two Real Retirement Dates and His Age at Each
The short answer is that there are two genuine retirement moments, and his age differs at each one. His boxing record shows 49 professional wins at the 2015 retirement, all against top-tier opponents across five weight divisions.
Timeline of the departures:
- September 12, 2015 — Retired at age 38 after beating Andre Berto by unanimous decision
- August 26, 2017 — Retired again at age 40 after stopping Conor McGregor in the 10th round
- 2021 onward — Exhibition bouts (Logan Paul, Don Moore, John Gotti III) that don't count as pro retirements
Many fans remember the 2017 McGregor fight as the "real" ending because it drew massive pay-per-view numbers. But Mayweather had already announced a formal retirement in 2015, then returned in 2017 for one more sanctioned fight.
The practical takeaway: when someone asks how old was floyd mayweather when he retired, clarify which retirement they mean. Most outlets cite 40 for the 2017 exit and 38 for 2015, and both figures are correct for how old was floyd mayweather when he retired at that specific moment.
Why the McGregor Fight Complicates the Answer
The McGregor bout was sanctioned as a professional boxing match, so it moved his record to 50-0. That means the 2017 retirement is the one that stands in official record books, and age 40 is the number most sports databases return when asked how old was floyd mayweather when he retired.
If you're checking this yourself, cross-reference the official record on BoxRec, the sport's most widely cited database, and confirm the date of his last sanctioned bout.
How to Verify Mayweather's Retirement Age Yourself
You can confirm the number in under five minutes using public records. The key is knowing which sources count sanctioned fights versus exhibitions, since that distinction changes how old was floyd mayweather when he retired in any given record.
A reliable verification process:
- Open BoxRec and search "Floyd Mayweather Jr."
- Note the birth date listed (February 24, 1977) — this is the anchor for any age calculation
- Find his final sanctioned bout date (August 26, 2017)
- Subtract the birth year from the fight year and adjust for whether his birthday had passed
Because his birthday falls in February and the 2017 fight was in August, his birthday had already passed — making him a full 40 years old at that fight, not 39. That simple calculation settles how old was floyd mayweather when he retired for the record books.
For broader context on how sports bodies record retirements, the Nevada State Athletic Commission, which sanctioned most of his Las Vegas fights, publishes official bout results you can reference.
How to apply this: Bookmark BoxRec and the NSAC site now so you can fact-check any age or record claim before citing it.
Age Comparison: Mayweather vs. Other Undefeated or Late Retirements
Mayweather retired later than many all-time greats, which surprises people who assume elite boxers peak and exit in their early 30s. His age at retirement sits in the upper range for modern champions — a detail that makes how old was floyd mayweather when he retired stand out among undefeated fighters.
| Boxer | Age at final fight | Final record | What to check |
|---|---|---|---|
| Floyd Mayweather Jr. | 40 (2017) | 50-0 | Confirm sanctioned only |
| Rocky Marciano | 31 (1955) | 49-0 | Pre-modern era record |
| Joe Calzaghe | 36 (2008) | 46-0 | Retired undefeated |
| Andre Ward | 33 (2017) | 32-0 | Early retirement |
| Manny Pacquiao | 42 (2021) | 62-8-2 | Lost final bout |
The table shows something useful: undefeated records and late retirements rarely overlap. Mayweather managed both, retiring at 40 with a perfect record — a combination almost no other champion has matched.
A common scenario is fans comparing him to Marciano, who retired at 31 with a similar undefeated mark but far fewer total fights.
How to apply this: When comparing fighters, always align on "sanctioned bouts only" so exhibition numbers don't distort the record, and keep that same standard in mind for how old was floyd mayweather when he retired.
The Retirement Age Question in Search and Media Context
Search interest in how old was floyd mayweather when he retired spikes around anniversary dates and whenever he announces a new exhibition. News outlets often report conflicting ages because they use different cutoff dates.
According to the International Boxing Hall of Fame, which inducted Mayweather in 2021, his official career dates run from 1996 to 2017 — a 21-year professional span. That induction confirms 2017 as the recognized endpoint, reinforcing age 40 as the correct figure for his final retirement.
The Hall of Fame's record is a strong citation because it's an authoritative body, not a fan blog. When writing or fact-checking, cite it rather than aggregator sites that mix exhibition dates into pro records.
One reliable rule: if a source lists his age at retirement as anything other than 38 (2015) or 40 (2017), check what fights it's counting. That single check resolves most disputes over how old was floyd mayweather when he retired.
How to apply this: When citing his age, name the year and retirement event rather than giving a bare number — this avoids ambiguity.
Why He Retired Undefeated and What It Means for His Legacy
Retiring at 40 with a 50-0 record is extremely rare because the sport punishes longevity. Mayweather protected his record by choosing opponents carefully and avoiding risky late-career matchups, and that careful planning is a big part of how old was floyd mayweather when he retired without a loss on his record.
Key facts behind the undefeated exit:
- He fought 50 sanctioned professional bouts with zero losses
- He won world titles in five weight classes
- His 2017 farewell against McGregor drew a reported 4.3 million pay-per-view buys in the US, one of the highest ever
The Hall of Fame's 2021 induction statement placed him among the sport's greatest defensive fighters, citing his record as the defining marker.
There's a trade-off worth noting: retiring at 40 undefeated required selective matchmaking, which some critics argue inflated the record. That debate is separate from the age question, but it explains why his retirement timing is so often discussed.
How to apply this: If you're researching a fighter's legacy, separate the "age at retirement" fact from the "quality of opposition" debate — they're different questions.
Frequently Asked Questions About how old was floyd mayweather when he retired
Was Mayweather 38 or 40 when he retired?
Both answers are correct depending on which retirement you mean. He was 38 in September 2015 after beating Andre Berto, and 40 in August 2017 after the McGregor fight. Most official records use 2017 as the endpoint, so how old was floyd mayweather when he retired is usually answered as 40.
Do his exhibition fights count as retirements?
No. His bouts against Logan Paul (2021), Don Moore (2022), and John Gotti III (2023) were exhibitions, not sanctioned professional fights, so they don't create new retirement dates. If a source cites 2023 or 2024 as a retirement year, it's counting exhibitions.
Stick to the 2015 and 2017 dates for the accurate answer to how old was floyd mayweather when he retired.
How can I confirm his birth date and career dates?
Use BoxRec and the International Boxing Hall of Fame, which list his birth date as February 24, 1977 and career span as 1996–2017. Because his February birthday precedes the August 2017 fight, he was a full 40, not 39. Cross-checking two reputable sources is the safest way to verify how old was floyd mayweather when he retired.
Did he ever officially unretire?
Yes — twice. He retired in 2015, returned for the 2017 McGregor fight, then retired again. His later exhibition appearances were billed as entertainment events, not comebacks. This pattern is why the simple question of how old was floyd mayweather when he retired needs a year attached to avoid confusion.
What was his age at his very last sanctioned fight?
He was 40 years old at his final sanctioned bout on August 26, 2017. Any age below 40 refers to the 2015 retirement, and any age above 40 refers to exhibition events. When someone asks how old was floyd mayweather when he retired and expects a single figure, 40 is the answer most record books support.
Conclusion
The answer depends on which farewell you mean, but the numbers are clear once you separate sanctioned bouts from exhibitions.
- He retired at 38 in 2015 and 40 in 2017
- Official records treat 2017 (age 40, 50-0) as the final retirement
- Exhibition fights don't create new retirement dates
- Verify with BoxRec and the Hall of Fame, not aggregator blogs
The bigger point is that retiring undefeated at 40 is a rare achievement, and getting the age right requires knowing which event counts.
Next step: Open BoxRec, pull up Mayweather's record, and confirm the dates yourself — then you'll always have the accurate answer to how old was floyd mayweather when he retired on hand.
