KidneyWales Cardiff 10K: Plan Around 6 September Closures

The KidneyWales Cardiff 10K will take place on 6 September 2026 on a route through Cardiff city centre, with thousands of runners expected to start at 10am. Rolling road closures will begin an hour earlier, at 9am, and continue along the route until 1pm.

KidneyWales is identified as the organiser, and the event is aimed at runners. A Cardiff Council update published on 28 August confirms the date, city-centre setting and traffic restrictions, but does not state an entry price or provide booking information.

When the race and restrictions begin

The two main times affect different groups. Participants have a confirmed race start of 10am, while residents and anyone travelling through the city centre need to note the earlier 9am start of the road restrictions.

The council describes the traffic measure as a rolling road closure along the route. Its notice does not give a street-by-street course or separate closure times for individual sections, so it is not possible from the supplied information to say exactly when any particular road will close or reopen.

The overall confirmed window runs for four hours, from 9am until 1pm. The restrictions are temporary and are being introduced to facilitate the 10K race.

What is confirmed for participants

The published information identifies the KidneyWales Cardiff 10K as the event and says thousands of runners are expected to take part. No additional race programme, supporting activities or schedule beyond the 10K start is included in the council update.

Prospective participants should distinguish the confirmed event information from registration details. The announcement establishes that the race is taking place in Cardiff at 10am on 6 September, but it does not say whether entries remain available, what participation costs, or how runners can book.

Planning around the Cardiff city-centre route

For people travelling through Cardiff city centre, the most useful confirmed detail is the 9am-to-1pm restriction period. Because the council has not supplied the detailed route in this update, the notice cannot be used to identify which individual streets will be affected or the order in which restrictions will move along the course.

The source also gives no specific public transport, parking or accessibility guidance. Those missing logistical details are best treated as unconfirmed rather than inferred from the four-hour closure period.

Residents, visitors and participants planning journeys connected with the route should therefore use 9am to 1pm on 6 September as the confirmed road-closure window. The race itself begins at 10am, according to Cardiff Council’s published update.

Source: Cardiff Council Newsroom