One number.
Four axes.
Every test you log feeds one score, normalised to your cohort. It's built to be said out loud: “I'm an 1,840.” It holds steady through one bad session and fades if you stop testing.
- Engine
- Aerobic capacity, sustained output
- Strength
- Maximal force
- Strength-endurance
- Repeated output under fatigue
- Work capacity
- Mixed-modal output over time
The axis breakdown is the diagnosis. “Engine in the 94th, strength-endurance in the 66th” tells you what to train next.
Launch ships percentiles per test. The composite score switches on once there are enough athletes to make it honest. Below 30 in a cohort, we show your rank and the sample size, not a percentile.
Murph · Sub-40 · 2026
Earn the mark.




No streaks.
Ever.
Max-effort tests push people past sensible limits. A rating system shouldn't reward that, so we built against it.
- 48 hours
- Minimum gap between ranked attempts on the same test.
- Briefing first
- A safety briefing before your first max-effort submission in any challenge.
- Your cohort, not the leader
- We tell you your percentile, never how far you are off first place.
- Caps get reviewed
- Results past the time cap are checked by a person before they rank.











