Chase Infiniti Workout Routine and Fitness Secrets

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Chase Infiniti’s Fitness Philosophy

Chase Infiniti went from relative unknown to one of the most talked-about young actresses in Hollywood in about 18 months. She played Jaden Sabich in Apple TV+’s Presumed Innocent in 2024, then landed the role of Willa Ferguson in Paul Thomas Anderson’s One Battle After Another (2025) opposite Leonardo DiCaprio, Sean Penn, Benicio del Toro and Teyana Taylor.

Her build is lean and athletic rather than bulky — the frame of someone who moves for a living, not someone chasing a bodybuilding look. And that matters, because Willa spends a huge chunk of One Battle After Another running, climbing fences, getting grabbed and fighting her way out of it. You can’t fake that kind of on-screen conditioning with a few weeks of treadmill work.

Infiniti hasn’t published a day-by-day training plan, and she’s not the type to post gym selfies. What’s documented is the karate and stunt prep she did for the PTA film, plus a general emphasis on staying functionally fit — being able to sprint, fall, and get back up over and over for 12-hour shoot days. The breakdown below reflects the kind of athletic-base program that supports that work.

Training Split

A four-day split with two conditioning days works best for actors in physical roles. It builds strength without adding size that would change how they look on camera, and it leaves enough in the tank for stunt rehearsals.

Day 1: Lower Body Strength

• Goblet Squat — 3 sets x 10 reps (warm-up)
• Back Squat — 4 sets x 6-8 reps
• Romanian Deadlift — 3 sets x 8-10 reps
• Walking Lunge — 3 sets x 20 steps
• Single-Leg Glute Bridge — 3 sets x 12 per side
• Calf Raise — 3 sets x 15-20 reps

Rest: 90 seconds between compound sets, 45-60 seconds on accessories.

Day 2: Upper Body Push and Pull

• Push-Up (or incline push-up) — 3 sets x 12-15 reps
• Dumbbell Bench Press — 3 sets x 10 reps
• Assisted Pull-Up / Lat Pulldown — 4 sets x 8-10 reps
• Seated Cable Row — 3 sets x 12 reps
• Dumbbell Shoulder Press — 3 sets x 10 reps
• Face Pull — 3 sets x 15 reps
• Bicep Curl superset with Triceps Rope Pushdown — 3 sets x 12 reps each

Rest: 60 seconds.

Day 3: Martial Arts and Conditioning

• jump rope warm-up — 5 minutes
• Karate basics: stance work, blocks, front kick, roundhouse — 20 minutes
• Pad work / combination drills — 6 rounds x 2 minutes, 60 seconds rest
• Break-fall and escape drills — 15 minutes
• Core finisher: hollow hold, Russian twist, plank — 3 rounds

Day 4: Full-Body Functional Circuit

• kettlebells Swing — 4 sets x 15 reps
• Box Jump — 4 sets x 6 reps
• Battle Ropes — 4 sets x 30 seconds
• Medicine Ball Slam — 3 sets x 12 reps
• Bear Crawl — 3 sets x 20 yards
• Farmer’s Carry — 3 sets x 40 yards

Rest: 45 seconds between stations, 2 minutes between rounds.

Days 5-7: Sprints, Active Recovery, Rest

One sprint session, one mobility day, one full day off. During filming, the sprint day usually gets cut — the shoot itself covers it.

Cardio Routine

Short and hard beats long and slow for this kind of prep.

Sprint intervals — 8 to 10 rounds of 20-30 second efforts with 90 seconds of walking between — build the repeat-sprint capacity you need when a director asks for take 14 of a running scene.

Steady-state work still has a place: 25-35 minutes of incline walking or easy cycling, two or three times a week, to keep the aerobic base up without frying the legs. Jump rope is the cheapest option and gets used constantly in martial arts warm-ups.

Role-Specific Training

One Battle After Another was the big one. Willa trains at a karate dojo run by Benicio del Toro’s Sensei Sergio, so Infiniti had to look credible throwing strikes and holding stance — not stunt-double credible, but convincing in close-up where there’s nowhere to hide. That meant real dojo instruction in the lead-up to the shoot, plus stunt coordination for the chase and escape sequences.

Prep for a film of that scale typically runs two to three months before cameras roll, with martial arts sessions three or four times a week tapering into fight choreography rehearsals as the start date approaches. The running work is its own category — PTA shot the film on VistaVision, and long takes mean full-speed repeats, not quick cuts.

Her earlier work on Presumed Innocent was a dialogue-driven legal drama with no physical demands, so the 2025 role represented a genuine step up in conditioning.

Recovery and Flexibility

Combat training wrecks hips and shoulders if you don’t stay on top of mobility. Ten to fifteen minutes of dynamic work before every session — leg swings, hip openers, thoracic rotations, ankle mobility — then static stretching afterward while the body’s warm.

Foam rolling for quads, IT band and upper back. Yoga once a week for hip and hamstring range. Eight hours of sleep whenever the call sheet allows, which on a long shoot isn’t often. Massage or physio sessions when the schedule permits, mostly to manage the bruising and stiffness that come with fight work.

Personal Trainer

Infiniti hasn’t publicly named a personal trainer. For One Battle After Another, her physical work ran through the production’s stunt department and martial arts coordinators rather than a celebrity gym coach — standard practice on a film where the fighting needs to look like a specific style taught at a specific dojo, not generic movie action.

Workout Stats

Frequently Asked Questions

How tall is Chase Infiniti?

Chase Infiniti is widely reported to stand about 5 ft 4 in (163 cm) tall.

How much does Chase Infiniti weigh?

Chase Infiniti’s weight is estimated at around 54 kg (119 lbs).

How old is Chase Infiniti?

Chase Infiniti is believed to be in her early twenties as of 2026. Her exact date of birth has not been publicly verified.

What is Chase Infiniti known for?

She is best known for playing Jaden Sabich in the Apple TV+ legal thriller Presumed Innocent (2024) and Willa Ferguson in Paul Thomas Anderson’s One Battle After Another (2025) opposite Leonardo DiCaprio.

What is Chase Infiniti’s net worth?

Chase Infiniti’s net worth is estimated in the low seven figures, built largely from her breakout streaming and feature film roles. No verified figure has been released.

Is Chase Infiniti dating anyone?

Chase Infiniti keeps her personal life private and has not publicly confirmed a boyfriend or girlfriend as of 2026.

How did Chase Infiniti train for One Battle After Another?

For her physically demanding role as Willa, she worked through stunt, running and combat-style conditioning sessions, combining cardio, mobility work and strength training to keep up with the film’s chase sequences.

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Last Updated: October 1, 2026 | Source: Healthy Celeb