Running
HYROX intervals: 6 × 1 km and 8 × 1 km
A repetition count is only part of a session
Six or eight 1 km repetitions do not describe the pace, rest, warm-up or weekly context. Those details determine the demand. More repetitions are not automatically better preparation.
Use a repeatable effort
The programme’s kilometre intervals use controlled effort and explicit easy recovery. Start with the warm-up, keep repetitions even and finish before technique deteriorates. The app does not invent a precise pace from an unverified result.
Six and eight belong to different decisions
In V11, six 1 km repetitions appear only in the advanced five-day route with 3+ recent runs, at least 25 km/week and a 50-minute recent comfortable run. These are authored entry rules, not scientific cut-offs. Other race routes use fewer repetitions; quality runs are separate from lifting. Eight repetitions remain a separate library example for review, rather than an automatic upgrade. Starting volume and the wider training week matter.
What the research supports
The available HYROX study highlights running demands in a small experienced sample. It does not establish six or eight repetitions as an optimal beginner prescription. Exact doses and progression require qualified review.
Read work and recovery together
Use the effort and number of repeats in your own session. Log each distance and split after completing the work. An optional effort timer does not mark a repetition complete. Manual laps record elapsed time; check and edit the result before saving.
Why isn’t eight times one kilometre the default?
Eight repeats add more running work than six. A first-race goal alone does not justify that volume. Eightpace keeps the eight-repeat example in the library, outside its default first-timer assignments. Running-foundation sessions use a separate run/walk route.