#NOT THE COMFORT ZONE
Sample report · illustrative data
Benchmark for Endurance Motorsport

Josh
Mercer

Lead mechanic, front jack & wheel gun, Trackside Motorsport. Britcar Endurance Championship, GT class. Four seasons in the role.

77/100
Benchmark Score
Strong power · right-side pattern

Explosive power is genuinely strong and well ahead of general population norms. The main flag is a consistent right-side loading pattern through the legs and hips, worth addressing before it becomes a bigger issue over a season.

Age
31 · Male
Height / Weight
177cm · 78.1kg
Role
Front jack & gun
Assessed
16 Jul 2026
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Report contents

The complete picture

Explosive power.
One-sided wear.

Josh's profile shows genuinely strong short-burst power alongside a clear right-side dominance through his legs and hips. The pattern is consistent with repeated loading in a fixed pit role rather than a general fitness problem.

What is working

Peak power and grip are both well ahead of general population norms, directly relevant to fast, repeatable wheel changes across a stint of stops.

What needs attention

A consistent right-side loading pattern across leg extension and the overhead squat, plus the lower-back tightness he's already noticing.

What's new this report

The same field-tested cognitive-under-load protocol used across the Motorsport Benchmark, interpreted here around pit work and long-event fatigue. It is reported in full but not yet weighted into the Benchmark Score.

Headline interpretation

This is not a general fitness problem. It's a role-specific loading pattern. Build rotational and single-side strength work in, protect the power that's already strong, and use aerobic work to support long-event resilience rather than the short stop itself.

Benchmark score

Benchmark score

A practical coaching score used to help prioritise action. It is not a medical diagnosis, percentile or population ranking. Weighting reflects the demands of Josh's pit-stop role.

77/100
Benchmark Score
Strong power · right-side pattern

Internal weighted coaching score. Designed to help prioritise action, not a percentile or ranking against others. Weighting reflects a crew profile: Power carries the most weight because explosive, repeatable force is an important physical quality for fast, consistent pit-stop work.

Strength
Good · right-left leg gap
81
Power
Standout pillar
88
Engine
Adequate, secondary here
66
Movement
Priority · asymmetric pattern
64
Health Markers
Good
79
AreaScoreWeightContribution
Strength8120%16.2
Power8830%26.4
Engine6620%13.2
Movement6415%9.6
Health markers7915%11.85
Total77/10077.25, rounded
Top priorities

What matters most

Three areas, in order of value for the next block.

1

Correct the right-side loading pattern

The right-left strength gap and movement pattern are consistent with repeated loading on the same side of the car. That pattern may be contributing to the lower-back tightness he already reports after long stints.

2

Keep building on genuinely strong explosive power

This is his standout pillar and an important physical quality for fast, consistent pit-stop work. Worth protecting deliberately rather than treating it as finished.

3

Build a bigger aerobic base for cumulative fatigue

Less about any single stop and more about staying sharp deep into a 12 or 24-hour event, when fatigue can make small errors more likely.

Profile summary

At a glance

Strength
81
Good
Power
88
Standout
Engine
66
Adequate
Movement
64
Priority
Health
79
Good
Cognitive
Tracked
Not scored
Strength · VALD DynaMo

Strength profile

Grip is well ahead of general population norms. The standout finding is a right-left gap in leg extension.

Grip symmetry
7%
Right stronger
Leg extension gap
15%
Right stronger
Hip abduction
8%
Right stronger
Neck lateral gap
8%
No significant flag
TestLeftRightDifference
Grip strength54.0kg57.9kg7% R
Seated leg extension52.0kg61.1kg15% R
Hip abduction24.0kg26.1kg8% R
Neck flexion / extension15.8kg / 22.3kgNew test
Neck lateral flexion12.1kg13.0kg8% R
Interpretation

The leg extension gap is the one to act on. It is consistent with a job that repeatedly loads one side: jacking and gunning from the same position, stop after stop. Neck testing shows no significant asymmetry, which is still useful as a baseline.

Power · Wattbike Atom X, 6-second

Power profile

The headline physical quality for Josh's crew profile, and his result is well above general population norms.

Peak power
1120
Watts
Relative power
14.4
W/kg
Interpretation

Explosive, repeatable power is an important physical quality for fast, consistent pit-stop work. Josh already has a strong base here, so the aim is to protect it while addressing the asymmetry rather than simply chasing a bigger peak number.

Engine · Splendo ramp test + Train Red muscle O2

Engine profile

A reasonable aerobic base. This pillar matters differently for crew than for drivers.

Aerobic base
Adequate
vs event demand
Resting HR
61
bpm, 7-day avg
Interpretation

Less about any single stop and more about resisting cumulative fatigue across a 12 or 24-hour event. The goal is to keep physical output, concentration and reaction quality available late into the event, not to turn a mechanic into an endurance athlete.

Movement · Yogger, posture and balance

Movement profile

The clearest role-specific finding in this report, and it lines up with the strength result above.

Overhead squat
Asymmetric
Right-side pattern
Balance
Pass
3-stage test
Interpretation

The overhead squat shows the same right-side pattern as the leg extension result, giving us a coherent picture across two different tests. That supports building rotational and single-side strength work into his week, both for performance and to reduce unnecessary load around the lower back.

Cognitive under load · field-tested test, not yet weighted into score

Decisions under pressure

The same cognitive-under-load protocol used across the Motorsport Benchmark, interpreted here around the demands of pit work and long-event fatigue.

Stroop RT, rested
548
ms
Stroop RT, under load
585
ms, +7%
Accuracy, under load
95%
vs 97% rested
Prefrontal O2 trend
Stable
No late drop
Interpretation

Josh slowed slightly under physical load but maintained high accuracy, with prefrontal tissue oxygenation remaining relatively stable through the test. For his role, that is a useful baseline rather than a current priority: the question on retest is whether the same response holds after a long race-day workload, not whether he can win a reaction-time test in isolation.

The cognitive-under-load test itself is field-tested. What is still developing here is the motorsport-specific Benchmark dataset and scoring, which is why this section is reported in full but not yet folded into the overall Benchmark Score.

Health markers · context, not diagnosis

Health markers

These markers help put the training results into context. They do not replace medical assessment.

Blood pressure
124/78
mmHg
Resting HR
61
bpm, 7-day avg
Waist-to-hip
0.86
Ratio
Weight
78.1
kg
Interpretation

A healthy overall picture. Sleep is self-reported as significantly disrupted on race weekends but otherwise fine, and he reports intermittent lower-back tightness after long stints, which may be related to the loading and movement pattern identified above.

What happens next

Next step

Benchmark summary

This is an independent baseline, not the start of a dependency. Where Josh takes the rotational and single-side work is his call, and the team's. The point is that the next decision is now based on his own data rather than a generic assumption about what a mechanic needs.