Cardiff Half Marathon

  • Cardiff
  • 21.1 km
  • Entry from £58
  • Ballot entry

The bottom line: this 21.1 km half marathon is a mixed profile. Entry is from £58 for the UK adult place, which our value model rates as strong for the distance.

Data current as of

The five sub-scores

PB potential
Value100
Conditions100
Beginner-friendly
Organisation

No single black-box number: each sub-score is shown independently. See the scoring methodology.

Cardiff Half Marathon's half marathon is a road course over 21.1 km that runs a mixed profile.

How hilly is the Cardiff Half Marathon?

Course profile not yet available for this race.

The course is a road course. The half marathon route covers 21.1 km. It starts at Castle Street, outside Cardiff Castle and finishes at Cardiff Civic Centre (grandstand finish). The surface is predominantly road.

What are realistic finish times?

Finisher distribution not yet available for this race.

Fit depends on your goal here: weigh the course shape and conditions below against a flat-out PB attempt. A generous 4 hours 30 minutes cut-off makes it realistic for first-timers and slower finishers too.

What does it really cost to run?

Estimated cost to the start line from National Average
Entry fee£58
Travel (modelled)£40
Accommodation (modelled)£90
Estimated total£188
Entry fee is a sourced fact. Travel and accommodation are modelled estimates for a typical runner from this region, not quoted prices.

There is a pre-race expo for number collection. A finish-area village waits at the end.

What are typical race-day conditions?

  • 13°CTypical temperature
  • 23 kphTypical wind
  • 3 mmTypical rainfall
  • 76Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

Expect typical race-day temperatures around 13°C, winds near 23 kph and about 3 mm of rain on an average year. Overall the conditions are favourable for endurance running — a help if you are chasing a time.

Verdict

The bottom line: this 21.1 km half marathon is a mixed profile. Entry is from £58 for the UK adult place, which our value model rates as strong for the distance.