Leslie Kai Greene is best known as “The Predator.” He is one of the greatest bodybuilders in the world, after winning numerous championships and placing highly in Mr. Olympia’s shows throughout his career.
He is recognized around the world for his unusual physique. In 2026, Kai Greene, aged 51, stands at a height of 5 feet 8 inches and carried a contest weight of 121 kilograms (267 lb).
Kai Greene’s last competition was the Arnold Classic Brazil in 2016. He was the runner-up at the 2012, 2013 and 2014 Mr. Olympia competitions, finishing second to Phil Heath.
🌱 Early Life Of Kai Greene
Kai Greene was born on 12 July 1975 in Brooklyn, New York, USA. From age six, he was raised in foster care and residential treatment centers in Brooklyn.
Kai Greene felt like an outcast for much of his teens and struggled to fit in. His behaviour at school suffered, and he was repeatedly in trouble as a teenager.
One positive he held onto was weight training. He used the gym to escape his difficulties and began developing his physique at the age of 13. Introduced to teen bodybuilding competitions, he soon set his sights on turning professional.
🏆 Bodybuilding Career of Kai Greene
Kai Greene competed in the National Physique Committee (NPC), aiming to move into the International Federation of Bodybuilders. He later described his success in the NPC as mixed.
Kai Greene found the senior ranks much tougher. He could not match his teen success at first, placing 3rd and 6th in the 1998 NPC and 1999 World Amateur Championship.
Kai Greene won the 1999 NPC Team Universe. He was frustrated and took a five-year break from tournaments before re-emerging in the 2004 NPC Team Universe competition, which he won again.
Kai Greene turned professional on the back of that 2004 Team Universe win, which earned him his IFBB pro card. It launched the career that would make him one of the sport’s biggest stars.
Kai Greene made his IFBB pro debut at the 2005 New York Pro. It was a tough debut for The Predator, who placed 14th. Greene decided to make a name for himself and worked relentlessly to improve his physique.
In 2007, Kai Greene finally earned his first professional bodybuilding win, the Shawn Ray Colorado Pro. But he was only getting started. In 2009, he won the Arnold Classic, his first major title.
Kai Greene competed in his first Mr. Olympia in 2009, at 34. He placed an impressive 4th in a stacked lineup that included Phil Heath, Branch Warren, and Jay Cutler.
From 2010 to 2016, Kai Greene won seven shows, including four more Arnold Classic titles. This run made him one of the greatest bodybuilders in the world.
In 2011, Greene began working with coach George Farah and won the New York Pro. He then finished second at the Mr. Olympia in 2012, 2013 and 2014 — behind Phil Heath every time — in bodybuilding’s fiercest rivalry.
Greene did not compete at the 2015 Mr. Olympia. In his 2022 documentary Kai, he said he was blocked from registering after launching Dynamik Muscle while under contract with Weider Publications.
He declined a special invitation to enter the 2017 Mr. Olympia without qualifying, and has not competed since.
🏅 Championship History
| No | Year | Event | Position |
| 1 | 1994 | NGA American Nationals | overall 1st |
| 2 | 1996 | WNBF Pro Natural Worlds | 1st |
| 3 | 1997 | NPC Team Universe Championships | 2nd |
| 4 | 1998 | NPC Team Universe Championships | 3rd |
| 5 | 1999 | World Amateur Championships | 6th |
| 6 | 1999 | NPC Team Universe Championships | 1st |
| 7 | 2004 | NPC Team Universe Championships | 1st (Pro Card) |
| 8 | 2005 | New York Pro | 14th |
| 9 | 2006 | Iron Man Pro | 20th |
| 10 | 2006 | Shawn Ray Colorado Pro/Am Classic | 14th |
| 11 | 2007 | New York Pro | 6th |
| 12 | 2007 | Keystone Pro Classic | 3rd |
| 13 | 2007 | Shawn Ray Colorado Pro/Am Classic | 1st |
| 14 | 2008 | New York Pro | 1st |
| 15 | 2008 | Arnold Classic | 3rd |
| 16 | 2009 | Australian Pro Grand Prix | 1st |
| 17 | 2009 | Arnold Classic | 1st |
| 18 | 2009 | Mr. Olympia | 4th |
| 19 | 2010 | Arnold Classic | 1st |
| 20 | 2010 | Australian Pro Grand Prix | 1st |
| 21 | 2010 | Mr. Olympia | 7th |
| 22 | 2011 | New York Pro | 1st |
| 23 | 2011 | Mr. Olympia | 3rd |
| 24 | 2011 | Sheru Classic | 3rd |
| 25 | 2012 | Mr. Olympia | 2nd |
| 26 | 2012 | Sheru Classic | 2nd |
| 27 | 2013 | Mr. Olympia | 2nd |
| 28 | 2013 | Arnold Classic Europe | 2nd |
| 29 | 2013 | EVL’s Prague Pro | 1st |
| 30 | 2014 | Mr. Olympia | 2nd |
| 31 | 2016 | Arnold Classic | 1st |
| 32 | 2016 | Arnold Classic Australia | 1st |
| 33 | 2016 | Arnold Classic Brazil | 1st |
📏 Kai Greene Body Measurement
| Kai Greene Weight | 121 KG (Contest) / 140 KG (Off-Season) |
| Kai Greene Height | 5 Feet 8 Inches |
| Kai Greene’s Arm Size | 23 Inches |
| Kai Greene’s Thighs Size | 34 Inches |
| Kai Greene’s Chest Size | 58 Inches |
| Kai Greene Date of Birth | 12 July 1975 |
| Kai Greene Age | 51 Years |
| Kai Greene Nationality | American |
💰 Kai Greene’s Net Worth
Greene is one of the best bodybuilders in the world. Kai Greene’s net worth is estimated at around 2 million US dollars.
He earned all his money being a pro bodybuilder, personal coach, and fitness icon. He has around 7 million followers on his Instagram account.
❤️ Kai Greene Wife
Kai Greene has never married, and he keeps his personal life very private. He was previously in a relationship with fellow bodybuilder Dyana Cadeau.
Cadeau has said in interviews that Greene first noticed her at the 1998 Jan Tana Classic, and that the couple finally met at the 2007 Olympia weekend.
🎬 Acting, Art & Business
Greene has built a second career on screen, playing Funshine in season 2 of the Netflix series Stranger Things (2017) and appearing in the films College Debts (2015), Crazy Fist and Pogaru (2021).
He starred in the documentaries Overkill (2010), Redemption (2010) and Generation Iron (2013), and told his story in Kai (2022).
A lifelong artist, he exhibited his paintings in 2011 and released his graphic novel Chronicles of King Kai at New York Comic Con in 2018.
He launched Dynamik Muscle in 2015 and The 5P training program in 2016, has signature lines with Ryderwear, signed with REDCON1 in 2020, and hosts the Getting It Done podcast.
💪 Kai Greene Training
Kai Greene loves to train using 5 to 10 different exercises. He likes to exercise with heavyweight dumbbells and incline bench presses.
Kai Greene Chest Workout
Kai Greene’s Chest workout is below with full details.
| Incline Bench Press at 30 Degrees | 2 Sets / 2-6 Reps |
| Flat Bench Press | 1 Set / 5 Reps |
| Incline DB Fly at 30 Degree | 3 Sets / 10-15 Reps |
| Machine Pec Dec | 3 Sets / 10-15 Reps |
| Seated 2-Arm DB French Press | 3 Sets / 10-15 Reps |
| Bent-Over DB Tricep Kickback | 3 Sets / 10-15 Reps |
| Standing Alternating DB Curl | 3 Sets / 10-15 Reps |
| Standing EZ-Bar Able Pushdown | 3 Sets / 10-15 Reps |
Kai Greene Back Workout
Here is the complete detail of Kai Greene’s Back workout.
| Lat Pulldown with a Medium Grip | 3 Sets / 10-15 Reps |
| Lat Pulldown, a Narrow Grip | 3 Sets / 10-15 Reps |
| Lat Pulldown with a Wide Grip | 3 Sets / 10-15 Reps |
| Seated Cable Row | 3 Sets / 10-15 Reps |
| Machine Shrugs | 3 Sets / 10-15 Reps |
| Machine Pullover | 3 Sets / 10-15 Reps |
| T-Bar Row | 3 Sets / 10-15 Reps |
| Barbell Row | 3 Sets / 10-15 Reps |
| 1-Arm DB Row | 3 Sets / 10-15 Reps |
| Seated Cable Row | 3 Sets / 10-15 Reps |
| Deadlift | 3 Sets / 10-15 Reps |
Kai Greene’s Leg Workout
Kai Greene’s leg workout.
| Donkey Calf Raise | 3 Sets / 10-20 Reps |
| Seated Calf Raise | 3 Sets / 10-20 Reps |
| Lying Leg Curls | 5 Sets / 10-20 Reps |
| Machine Leg Extensions | 5 Sets / 10-20 Reps |
| Back Squats | 5 Sets / 10-20 Reps |
| Kneeling Leg Curls | 5 Sets / 10-20 Reps |
| Machine Hack Squats | 5 Sets / 10-20 Reps |
| Stiff-Legged Deadlifts | 5 Sets / 10-20 Reps |
Kai Greene’s Diet Plan
Kai Greene has a strict diet plan to follow. He takes his first meal at least 30 minutes before the workout. He eats five meals a day.
| 1st Meal | Slices Ezekiel Bread, 2 Egg Whites, 4 Scallions, 2 Shredded Cheddar Cheese, 1/2 |
| 2nd Meal | Scoops of Vanilla Protein Powder, 2 Almonds 1 ounce, One cup Vanilla Almond One cup of Blueberries, One Glass of Water |
| 3rd Meal | Grilled Flank Steak, 6 Ounces Cucumber, 1/2 One Teaspoon of Olive Oil 1 Ripe Tomato |
| 4th Meal | Chicken Breast, 6 Ounces Walnuts and Raisins, 2 1/3 cup of Quinoa |
| 5th Meal | Medium Size Yams, 2 One Tablespoon butter Stalks of Asparagus, 4 Two tablespoons of Parmesan Cheese 5 ounces of Tuna Steak with 7 ounces of Cod |
📅 Kai Greene Now (2025–2026)
Greene has never officially retired. A February 2025 “Don’t call it a comeback” video and Masters Olympia comments sparked fresh comeback talk — but he did not compete in 2025, and has not competed since 2016.
On The Kai Greene Effect podcast in late 2025, he said he has never formally retired “and that’s for a reason,” while announcing no confirmed return. The podcast runs with the Generation Iron network.
In February 2025 he became co-owner of supplement brand Pro Am, launched at the 2025 Arnold Classic. In 2026 he appeared with old rival Phil Heath on the Olympia Prep Show livestream, and now 51, he still trains every day.
Source:
- Kai Greene’s Official Instagram Account
- Facebook Page
- Kai Greene YouTube Channel
- Personal interviews featured in various magazines
❓ FAQs
No. Kai Greene finished 2nd at the Mr. Olympia in 2012, 2013 and 2014, behind Phil Heath each time. He is widely regarded as one of the best bodybuilders never to win the title.
Kai Greene’s net worth is estimated at around 2 million US dollars, earned from prize money, coaching, sponsorships, business and acting.
Kai Greene was born on 12 July 1975 in Brooklyn, New York, USA. From age six, he was raised in foster care and residential treatment centers in Brooklyn.
Kai Greene said about his hair: “Of course, it’s real hair. It’s not my hair. But it’s real hair.”
He has never officially announced his retirement, and teased a comeback again in 2025 — but he has not competed since 2016, and as of 2026 there is no confirmed return.