Keirin

• Accreditation register — every rider by grade across the seven steps (Taster, Foundation, Accreditation 1-4, Elite), the assessment that awarded it, the assessor, the date, the expiry and the re-assessment due.
• Session calendar — track sessions by grade entitlement, capacity and coach on duty, against a grade-entitlement matrix that says who may ride what.
• Race programme — scratch, points, elimination, keirin and madison across the league, with heats, start sheets and results.
• Commissaires and officials — the panel, licence category, appointments per meeting and the rota.
• Fleet — hire track bikes by frame size and gear inches, gearing restrictions per grade, service history and tyre-pressure log.
• Track certification and surface — UCI homologation class, surface inspection record, splinter and board-fixing log, temperature and humidity.
• Timing and standards — flying 200 m, kilo and 3 km pursuit standards per grade, with riders' personal bests set against the qualifying time.
• Incidents — the crash and medical log, with banking position, cause and outcome.
• Membership and hire billing.
• Rider portal and track-manager dashboard — a rider sees their grade and expiry, the sessions they may book, their bests against the grade standard, their hire and their incidents; a manager sees session occupancy, accreditations expiring, commissaire rota gaps, fleet service due and surface inspection status.

Velodromes and indoor tracks, national and regional cycling federations, motorsport and ski-racing licensing bodies, climbing walls and any facility whose core obligation is to grade people, entitle them to sessions, and defend that decision afterwards.

Swap the arena, the grades and the disciplines; re-cut the entitlement matrix; change the standards table to your own qualifying times. Re-point the drawn oval at your own geometry. The ink and the authority survive the swap.