5-question intake covering race date, available training days, current fitness level, gym equipment access (sled, SkiErg, wall balls, or substitutes), and self-identified weaknesses (running vs. stations).

Rules-based periodization engine that builds an 8-16 week plan with mesocycles (base, build, race prep, taper), distributing running, station drills, and strength sessions across the user's available days.

Week-by-week view showing each session with exercises, sets, reps, distances, and rest periods. Users can mark sessions complete and see progress through the block.

Automatically swaps exercises when users lack HYROX-specific equipment (e.g., rowing machine for SkiErg, dumbbell lunges for sled push) based on questionnaire answers.

Export the full plan as .ics files for Google Calendar, Apple Calendar, or Outlook so sessions appear as calendar events with workout details.

One-time purchase flow via Stripe. After payment, user gets immediate access to their generated plan via a unique URL with optional PDF download.

Allows users to regenerate or shift their plan if they miss a week, get injured, or their race date changes, recalculating remaining weeks accordingly.

Estimates target split times for each HYROX station and running segment based on the user's fitness level and training progress.

Short embedded demo videos for each exercise in the plan, especially HYROX-specific movements like wall balls, sled push/pull, and burpee broad jumps.

Weekly email reminders with the upcoming week's overview, motivation tips, and race-day prep advice as the event approaches.