Guhayavarman, Founder & Chief Fitness Director

The people behind your protocol.

A Chief Fitness Director who reviews every application personally, certified trainers across India and on-call specialists for clinical-level nutrition. One team, one method.

New YorkLondonDubaiSingaporeSydneyTokyoDublinKuala LumpurDurbanNew YorkLondonDubaiSingaporeSydneyTokyoDublinKuala LumpurDurbanNew YorkLondonDubaiSingaporeSydneyTokyoDublinKuala LumpurDurbanNew YorkLondonDubaiSingaporeSydneyTokyoDublinKuala LumpurDurban

Guhayavarman

Founder & Chief Fitness Director

@fitguhay · Coaching clients worldwide

I started CALIBRATE because I kept seeing the same pattern: smart, motivated people failing to reach their goals, not from lack of effort, but from lack of the right system. Engineers, founders, product managers putting in the work but getting nowhere.

The fitness industry profits from confusion. CALIBRATE is built on the opposite principle, the same data-driven frameworks used in precision engineering, applied to body optimisation. Your body is a process. Processes can be optimised.

  • NASM Certified Personal Trainer (CPT)
  • ISSA Certified Nutritionist
  • Diploma in Fitness Science and Sports Nutrition
  • Corrective Exercise Specialist

45

Clients in 2026

10+

Years coaching

10

Countries reached

The trainers you'll work with.

A10+ years

Ashok

Personal Trainer - Certified Strength & Conditioning Coach

Strength & Conditioning · Online coaching

Ashok brings over a decade of strength and conditioning expertise to CALIBRATE. As an online trainer, he designs progressive programming for clients across all levels, from foundational strength work to performance-focused conditioning cycles.

R8+ years

Rajavel

Certified Personal Trainer

Personal Training · Online coaching

Rajavel is a certified personal trainer with eight years of experience working with clients across diverse goals and backgrounds. His coaching is grounded in building sustainable habits and consistent progress, no extremes, no shortcuts.

B5+ years

Balaji

NASM CPT - Online Trainer

NASM Certified Training · Online coaching

Balaji is NASM-certified and specialises in online coaching, delivering structured, evidence-based programmes remotely. His methodical approach ensures clients get expert-level training regardless of where they are based.

Clinical depth when you need it.

For clients who need clinical-level nutrition or complex dietary support, these specialists step in.

Naren, Nutritionist & Fitness Data Analyst

Naren

Nutritionist & Fitness Data Analyst

Nutritionist - Fitness Data Analyst - 10+ years · Malaysia

Naren combines nutritional expertise with data-driven fitness analysis, a rare combination that lets him translate raw client metrics into precise dietary strategies. With over a decade of experience, he handles complex nutrition protocols and performance-level goals.

Karthika D'Souza, Dietician & Clinical Health Analyst

Karthika D'Souza

Dietician & Clinical Health Analyst

Registered Dietician - Clinical Health Analyst - 10+ years · Malaysia

Karthika brings clinical-grade expertise to the team, managing medical dietary requirements, health risk analysis, and evidence-based nutrition intervention for clients who need specialist-level dietary support.

Four rules we never break.

No generic programmes

Every client gets a plan built from scratch. Templates are for people who want average results.

Radical accountability

We track everything, not to judge, but because the data is what lets us make the right adjustments.

Sustainable, not extreme

Crash diets and punishment workouts don't work. Real body change comes from systems you can maintain.

Education alongside results

The goal isn't dependency. By the end of your programme, you understand your body well enough to stay there.

Start with a free 30-minute call.

Tell us where you are and where you want to be. In a free 30-minute call we'll show you exactly how CALIBRATE and the Vemisis app would work around your schedule. No pressure, no commitment.

Applications are reviewed within 48 hours. WhatsApp replies come within 4 hours on weekdays.

Coach Guhayavarman checking the Vemisis app on his phone