STRENDEX Scoring

How scoring works

This page explains how the Hybrid Score is calculated and what it means. It’s designed to be simple, fair, and comparable across athletes.

1) The Hybrid Score (0–100)

Your Hybrid Score is calculated using one simple formula:

Hybrid Score = 0.5 × Strength Percentile + 0.5 × Endurance Percentile

The result is rounded to a whole number from 0 to 100. It is the average of two percentiles, not a percentile itself: a Hybrid Score of 75 does not mean you outperform 75% of athletes.

2) What is a percentile?

Your Strength and Endurance Percentiles are true percentiles. Each shows where that side of your performance sits within the Strendex reference dataset, rather than raw weight lifted or raw time alone.

If your Strength Percentile is 80, your strength sits above roughly 80% of the reference dataset.

If your Endurance Percentile is 40, your endurance sits above roughly 40% of it.

Example: (80 + 40) ÷ 2 = 60 → Hybrid Score = 60

That 60 doesn’t place you above 60% of athletes overall. It is the midpoint of a strong strength side and a lighter endurance side.

3) Why scores may change over time

Your score moves when your lifts, bodyweight or run change. It doesn’t drift as other people submit: percentiles are measured against a frozen reference dataset, and new submissions don’t shift it.

That dataset is provisional. When Strendex moves to a newer version built from cleaner athlete data, the same inputs may produce different percentiles.

4) Why percentiles instead of raw numbers?

Raw weight and raw times don’t scale fairly across body types, experience levels, or different athletic strengths.

Percentiles put strength and endurance on the same 0–100 footing. This makes your score:

Scaled to bodyweight on the strength side
Comparable across supported run distances
Balanced between strength and endurance
Resistant to inflated raw totals

Neither side can carry the Hybrid Score on its own. Each counts for exactly half.