Floyd Mayweather and David Einhorn built their fortunes in completely different worlds. Mayweather became one of boxing’s most recognizable figures through an undefeated 50–0 professional record, championship success and major pay-per-view events. Einhorn, meanwhile, made his name on Wall Street as the founder and president of Greenlight Capital, gaining attention for his value-investing strategy and high-profile investment calls. Their careers rarely overlap, but both turned exceptional professional skill into substantial wealth and lasting public profiles.
Floyd Mayweather and David Einhorn – Quick Bio Table
| Profile Detail | Floyd Mayweather | David Einhorn |
|---|---|---|
| Full Name | Floyd Joy Mayweather Jr. | David M. Einhorn |
| Date of Birth | February 24, 1977 | November 20, 1968 |
| Age | 49 years | 57 years |
| Nickname | Money, Pretty Boy | No widely established public nickname |
| Birthplace | Grand Rapids, Michigan, USA | New Jersey, USA |
| Nationality | American | American |
| Net Worth — Estimated | About $400 million; estimates vary | About $1 billion; estimates vary |
| Profession | Professional Boxer, Boxing Promoter, Entrepreneur | Investor, Hedge-Fund Manager, Businessman |
| Famous For | 50–0 undefeated boxing record and world championships in five weight classes | Founding and leading Greenlight Capital; high-profile value investing and short selling |
| Career | Professional boxing career began in 1996; later expanded into promotions and exhibitions | Began on Wall Street after Cornell; founded Greenlight Capital in 1996 |
| Career Status | Active in boxing exhibitions and promotional/business activities | Active investor and President of Greenlight Capital |
| Height | 5 ft 8 in (173 cm) | Not reliably publicly documented |
| Weight | Varies by fight; last listed boxing weigh-in around 154.3 lb (70 kg) | Not reliably publicly documented |
| Parents | Floyd Mayweather Sr. and Deborah Sinclair | Stephen Einhorn and Nancy Einhorn |
| Siblings | Jeff Mayweather, Roger Mayweather and Deltricia Black, among other family members | Two brothers; he is the eldest of three boys |
| Education | Ottawa Hills High School; left before graduating | Cornell University, B.A. in Government, summa cum laude |
| Marital Status | Single | Previously married; personal-status information has changed over time |
| Children | Four biological children | Three children |
| Hair Color | Black | Not reliably documented |
| Eye Color | Not reliably documented | Not reliably documented |
| Hobbies / Interests | Boxing, fitness, luxury cars, watches, travel and business | Investing and poker |
| @floydmayweather | No clearly verified personal Instagram account established | |
| Professional Record | 50 wins, 0 losses, 27 KOs | Not applicable |
| Major Achievement | World champion across five weight divisions; 1996 Olympic bronze medalist | Built Greenlight Capital and became a prominent Wall Street investor |
| Major Fight / Investment Moment | Defeated Manny Pacquiao and Conor McGregor; finished professional career 50–0 | Famously questioned Lehman Brothers before its 2008 collapse |
| Business | Mayweather Promotions and other ventures | Greenlight Capital |
| Book / Publication | — | Fooling Some of the People All of the Time |
| Career Earnings | More than $1 billion reported across boxing and related activities | Primarily generated through investment management and ownership interests |
| Philanthropy | Has supported charitable and community causes | Einhorn Collaborative and major Cornell-related philanthropic work |
| Family Background | Born into a prominent boxing family | Raised in a financially and academically accomplished family; father was a businessman |
| Estimated Career Field | Boxing, promotion and entertainment | Finance, investing and hedge-fund management |
Floyd Mayweather and David Einhorn Images
