Start with the athlete name
Search the full name, then compare year, race, club, category, and source before assuming two records belong to the same runner.
Try the event archive next
Organizer and timing-provider pages are authoritative for certificates and corrections. FindMyRace helps when the provider is unknown or a runner has results across several systems.
Check spelling and older formats
Diacritics, married names, initials, and transposed first and last names can affect historical searches. Avoid treating a name match alone as proof of identity.
The current published archive contains 170 marathon and 383 half-marathon race-years.