Marathon Performance Testing Surrey
The marathon is an endurance problem, not just a mileage problem. Most runners train hard without ever understanding how their engine actually works or how it changes across a training block.
At The Edge, we utilise physiological testing to remove guesswork from marathon preparation. This package is built to show you exactly how your body adapts across training and how to pace, fuel and hydrate on race day with confidence.
Why Marathon Runners Come to The Edge
Marathon performance depends on more than fitness alone. It relies on:
- Aerobic efficiency and sustainable power
- Fuel utilisation across long-duration efforts
- Sweat sodium loss and hydration tolerance
- Accurate pacing under fatigue
- Training adaptations over time
Training without this data is assumption-based. We replace assumptions with measurable precision.
What’s Included in the Marathon Package
Dual VO2max & Lactate Threshold Testing
Two full laboratory assessments:
- One at the start of your marathon training block
- One in the final phase before race day
This allows us to quantify training adaptation, dial in marathon pace zones, and validate that your preparation has actually worked.
Personalised Marathon Pace
Using your lactate and VO2 data, we establish realistic, sustainable marathon pace targets based on physiology.
Advanced Sweat Sodium Test
Identifies your unique sodium loss so hydration can be precisely matched to race-day demands.
Personalised Fuelling & Hydration Strategy
A clear, race-ready plan covering:
- Carb intake targets
- Fluid volumes
- Sodium requirements
- Pre-race, in-race and recovery guidance
Built specifically for you and your physiology.
1-to-1 Physiologist Review
A full data walkthrough at a later date translating lab results into practical training and race execution decisions.
Who This Package Is For
- Marathon runners aiming for a PB
- Experienced endurance runners stepping up in distance
- Athletes returning from injury who want pacing confidence
- High-performing amateurs who want professional-level insight
This is for runners who want clarity, not generic advice.
What Runners Gain
- Accurate marathon pacing based on physiology •
- Confidence that training adaptations are real
- Reduced risk of late-race fade or “hitting the wall”
- Smarter fuelling and hydration under fatigue
- Clear data-led decisions heading into race day
Location & Availability
Testing takes place at The Edge Performance Lab in Leatherhead, Surrey.
Due to the depth of testing and repeat assessments, availability is limited across the marathon season.
Book Below