Robert Whittaker, known to fans as “The Reaper” and “Bobby Knuckles,” is one of the most respected and accomplished fighters in mixed martial arts. With a career defined by resilience, skill, and humility, Whittaker has become a household name in the UFC middleweight division. This comprehensive breakdown covers every aspect of his life and career, from personal details to fight purses, endorsements, and more.
Robert Whittaker’s Biography
| Attribute | Details |
| Full Name | Robert John Whittaker |
| Nicknames | The Reaper, Bobby Knuckles |
| Date of Birth | December 20, 1990 |
| Age | 34 years old |
| Place of Birth | Ōtāhuhu, Auckland, New Zealand |
| Nationality | Australian |
| Height | 6 ft 0 in (183 cm) |
| College | N/A |
| Religion | Christian |
| Turned Pro | 2009 |
| Net Worth | Estimated $4 million |
| Salary (per fight) | $300,000–$400,000 base, plus bonuses |
| Spouse | Sofia Maree Whittaker |
| Relationship Status | Married |
| Children | three sons: John, Jack, Jace, one daughter: Lilliana |
| Instagram Profile | @robwhittakermma |
Early Career
Robert Whittaker began his athletic journey in junior rugby league before transitioning to martial arts at age seven, starting with Goju-ryu karate. After earning a black belt, he moved to hapkido and eventually MMA under coach Henry Perez. Whittaker quickly made a name for himself on the Australian MMA scene, which led to his entry into “The Ultimate Fighter: The Smashes” in 2012, where he won the welterweight tournament and secured a UFC contract.
Professional Career
Whittaker debuted professionally in 2009, quickly racking up wins with his dynamic striking and well-rounded skills. After winning “The Ultimate Fighter: The Smashes,” he fought at welterweight before moving to middleweight, where he found his true calling. His career highlights include a nine-fight UFC win streak and capturing the interim UFC Middleweight Championship at UFC 213 by defeating Yoel Romero. He was later promoted to undisputed champion after Georges St-Pierre vacated the title.
Whittaker has faced and beaten many elite fighters, including Yoel Romero (twice), Darren Till, Jared Cannonier, and Kelvin Gastelum. Despite losing his title to Israel Adesanya in 2019, Whittaker remains a top contender, known for his sportsmanship, technical prowess, and ability to bounce back from setbacks.
Wife
Robert Whittaker is married to Sofia Maree Whittaker. The couple has four children: three sons (John, Jack, Jace) and a daughter (Lilliana). Their family life is often shared on social media, reflecting a strong, supportive bond. Whittaker is also a legal guardian to his younger half-siblings, showcasing his commitment to family beyond his immediate household.
Robert Whittaker’s Net Worth Details
As of 2025, Robert Whittaker’s net worth is estimated to be around $4 million. This figure includes his fight purses, performance bonuses, and substantial endorsement income. His UFC earnings alone surpass $3 million, with additional income from sponsorships and endorsements estimated at about $1 million per year.
Fight Purses
| Opponent | Base Salary | Win Bonus | Performance Bonus | Sponsorship/Incentive | Total Earnings |
| Yoel Romero (1st) | $470,000 | — | $150,000 | $40,000 | $660,000 |
| Yoel Romero (2nd) | $350,000 | — | $50,000 | $30,000 | $430,000 |
| Israel Adesanya | $400,000 | — | $100,000 | $40,000 | $540,000 |
| Israel Adesanya (2) | $600,000 | — | $32,000 | — | $632,000 |
| Jared Cannonier | $210,000 | $160,000 | — | $15,000 | $385,000 |
| Darren Till | $200,000 | $150,000 | — | $10,000 | $360,000 |
| Kelvin Gastelum | $220,000 | $220,000 | $50,000 | $16,000 | $506,000 |
| Paulo Costa | $400,000 | — | — | — | $400,000 |
| Dricus du Plessis | $300,000 | — | — | $16,000 | $316,000 |
| Ikram Aliskerov | $500,000 | — | $50,000 (est.) | — | $550,000 |
| Khamzat Chimaev | $300,000 | — | — | $6,000 | $306,000 |
Endorsements
- Reebok
- Venum
- ReaperGear
- Sport at Crown
- Musashi Sports Nutrition
- GOAT CREW
- Transcending Organics
- UniBet Australia
Career Records
| Opponent | Result | Notable Event |
| Yoel Romero | Win (x2) | UFC 213, UFC 225 |
| Israel Adesanya | Loss (x2) | UFC 243, UFC 271 |
| Jared Cannonier | Win | UFC 254 |
| Darren Till | Win | UFC on ESPN 14 |
| Kelvin Gastelum | Win | UFC on ESPN 22 |
| Ronaldo Souza | Win | UFC on Fox 24 |
| Derek Brunson | Win | UFC Fight Night 101 |
| Dricus du Plessis | Loss | UFC 290 |
| Paulo Costa | Win | UFC 298 |
| Khamzat Chimaev | Loss | UFC 308 |
FAQs
1. Who is Robert Whittaker?
Robert Whittaker is an Australian professional mixed martial artist who competes in the Middleweight division of the Ultimate Fighting Championship (UFC). He is a former UFC Middleweight Champion and was the first Australian to win a UFC championship.
2. Where was Robert Whittaker born and what is his heritage?
Robert Whittaker was born on December 20, 1990, in Ōtāhuhu, Auckland, New Zealand. His father is of European descent from Australia, and his mother is of Samoan and Māori ancestry.
3. What are some of Robert Whittaker’s major MMA achievements?
Whittaker has been UFC Middleweight Champion, won “Fight of the Night” five times, “Performance of the Night” four times, and was named Fighter of the Year in 2017. He holds the third most wins in UFC Middleweight history and has the second most post-fight bonuses in the division.
4. How did Robert Whittaker start his martial arts career?
Whittaker began training in Goju-ryu karate at age seven, earning a black belt. He later transitioned to hapkido and then to mixed martial arts when his gym shifted focus. He chose MMA over rugby league, which he also played as a youth.
5. Who is Robert Whittaker married to and does he have children?
Robert Whittaker is married to Sofia Whittaker, and together they have four children.
6. What is Robert Whittaker’s fighting style and stance?
Whittaker fights in an orthodox stance and is known for his striking ability, athleticism, and tactical approach inside the octagon.
7. What is Robert Whittaker’s professional MMA record?
Robert Whittaker’s professional MMA record is 27 wins and 8 losses.
8. What are some of Robert Whittaker’s most notable UFC fights?
Notable fights include victories over Yoel Romero (twice), Jared Cannonier, Kelvin Gastelum, and Paulo Costa, as well as bouts against Israel Adesanya and Dricus du Plessis.
9. What is Robert Whittaker’s net worth and how does he earn his income?
Robert Whittaker’s estimated net worth is $3 million, primarily earned through UFC fight purses, endorsements, and sponsorships.
10. Is Robert Whittaker involved in activities outside MMA?
Yes, Whittaker is an avid gamer, supports rugby, and is active in charitable work and community outreach programs. He is recognized for his humility and commitment to inspiring others.