Breadth with judgment
We look beyond the most famous events without turning the calendar into an indiscriminate list. Established races, regional standouts, and noteworthy emerging events all have a place when the information supports them.
Race data methodology
A race calendar is only as good as the work behind it.
42Cal is built through continuous discovery, careful research, selective curation, and ongoing maintenance. Our aim is a database broad enough to explore and disciplined enough to trust.
We do not measure quality by how many names we can add to a list. We measure it by whether each race belongs there—and whether its record is genuinely useful.
Discovery and selection
Search broadly. Add deliberately.
We look across the global racing landscape: established international events, regional standouts, long-running local fixtures, and emerging races that deserve wider attention. The goal is not volume for its own sake. It is a calendar that represents the sport with range and discernment.
Before a race becomes part of 42Cal, we work to establish that the event is active, distinct, and supported by credible current information. A race earns its place through relevance and research—not simply because its name appears elsewhere online.
Depth over duplication
A race repeated across the web is not automatically well understood. We focus on building one useful record rather than echoing the same thin or outdated listing.
Current, not merely collected
A database can be large and still be stale. Dates move, events pause, names change, and new editions are announced. Quality depends on continuing to pay attention.
Research quality
More than a name, place, and date
A useful race record should help someone understand the event, not merely prove that it exists. We research the details that make comparison meaningful: the course, distances, entry, scale, setting, conditions, logistics, and character of the race.
Those details are often scattered, incomplete, or slow to reflect a new edition. We bring them into a coherent picture, resolve contradictions where the available information allows, and avoid presenting uncertainty as fact.
Ongoing maintenance
The database is a living body of work
Publishing a race is not the end of the work. Events change from one edition to the next, and records need to change with them. We continue revisiting the calendar so that growth does not come at the expense of quality.
No global race database will ever be perfectly complete or permanently current. Our standard is to be thoughtful about what we add, honest about what can change, and responsive when better information becomes available.
Corrections
Help us strengthen the calendar
Organizers and runners often see changes before the wider public does. If a listing is incomplete or no longer reflects the event, send us the race page, the detail that needs attention, and the best current information available.
Report a correctionLearn more about 42Cal or browse the upcoming race calendar.