Ealing Half Marathon 2026: course guide, weather and tips

The Ealing Half Marathon takes place on September 27, 2026, in West London. This race attracts over 6,000 participants on a fully road-closed course, starting and finishing at Walpole Park. Voted the UK's best half marathon three consecutive years, it's known for its exceptional community atmosphere.

Ealing Half Marathon by numbers

The course covers 21.1km in a single lap, starting and finishing at Walpole Park. The route is predominantly flat with gentle undulations, totaling 140 meters of elevation gain. Start time is 9:00am on Sunday, September 27, 2026. Over 6,000 runners are expected. Entry fees range from £4.26 to £47.10 depending on when you register. The cut-off time is 3 hours to allow roads to gradually reopen.

Course breakdown

Start and opening kilometers (0-5km)

The race village and start are located at Walpole Park, Ealing W5. The first kilometers run through central Ealing on wide, flat roads, perfect for settling into your rhythm. The atmosphere here is electric with spectators lining the course. You quickly leave the park and head into residential neighborhoods. This is the time to find your pace without getting carried away by the adrenaline of the start.

Northern section: Montpelier and Pitshanger (5-10km)

The route passes through Montpelier, Pitshanger, West Ealing, Hanwell and St Stephen's. This section winds through typical West London residential streets. The undulations become more noticeable but remain manageable. Local residents turn out in force to cheer runners, some even setting up music stations outside their homes. Churches along the route serve as aid stations.

Western section: Hanwell (10-16km)

You now reach Hanwell, the farthest point of the course. The route runs along parts of the Brent River Valley in places. This is where the cumulative elevation gain becomes noticeable, with several short but repeated climbs. Past halfway, mentally you need to stay focused. Spectators are slightly fewer in this area but volunteers at aid stations remain incredibly motivating.

Return to Walpole Park (16-21.1km)

The final three kilometers mark the return to Walpole Park. Runners come back to Walpole Park to power through the final kilometer with supporters cheering. You retrace the main roads from the start, but this time in the opposite direction. The atmosphere cranks up: spectators know you're hurting. The final kilometer through the park, facing the grandstands and massive support, carries you to the finish line.

What weather to expect

For late September in London, expect typical British autumn conditions. Average maximum temperature hovers around 17°C, with lows around 10°C at the early morning start. There's approximately a 43% chance of rain on race day, with an average of 2.3mm of daily precipitation. Average wind reaches 22 km/h.

Plan for light but adaptable kit: a vest or technical t-shirt, shorts or capris depending on your preference. If rain is forecast, keep a lightweight windproof jacket you can tie around your waist after warming up. In dry, mild weather, 17°C is ideal for performance. Avoid overdressing at the start: you'll warm up quickly after the first few kilometers.

Race strategy and tips

Pacing on a rolling course

The course is described as predominantly flat with gentle undulations. Don't be fooled: "rolling" doesn't mean "flat." Maintain an even effort, especially on the short climbs between km 8 and km 15. On this type of profile, the classic mistake is starting too fast on the flat opening kilometers. Aim for a pace slightly slower than your goal for the first 8km, then gradually pick up if you're feeling good.

Fueling and hydration

Water stations are positioned along the course. Aid stations are uniquely located at churches along the route. For a half marathon, plan to take an energy gel around km 10-11, before fatigue really sets in. Drink at every station, even just a small sip. In mild weather (17°C), dehydration is less critical, but stay vigilant.

Managing repeated undulations

The 140 meters of elevation gain are spread throughout the course. Key technique: shorten your stride slightly on climbs and relax on descents without forcing. Don't try to maintain exactly the same pace uphill—you'll naturally make it up on the following flat sections. Short, repeated climbs tax your quads more than you might expect: train this type of effort in advance.

Using the atmosphere to your advantage

Over 30,000 spectators cheer every runner. This race is renowned for its exceptional community atmosphere. In tough moments, focus on the encouragement, respond to spectators, feed off this energy. Between km 15 and km 19, when fatigue sets in, this atmosphere can give you a second wind.

What makes this race special

Established in 2012, the race quickly won awards as the UK's number one half marathon. Voted the UK's best half marathon three consecutive years, the Ealing Half stands out for its strong community character. The race supports the We Run Ealing initiative, a not-for-profit organization dedicated to promoting health and fitness.

The course is fully road-closed with chip timing, quality medals, and excellent support from spectators and volunteers. All entrants must be 17 or older. Race bibs are posted in September to those registered before August 20th; after that you'll need to collect your bib on race weekend.

Northfields Station on the Piccadilly Line is within a 10-minute walk of the start/finish area, while Ealing Broadway Station on the Central and District Lines is a 15-minute walk. There's also a 5km event, the Ealing Feeling 5K, taking place the same day.

Getting encouragement during the Ealing Half Marathon with Cobbr

Between kilometers 15 and 18, when you're crossing Hanwell with its repeated climbs and fewer spectators, that's when your mental strength wavers. This is exactly the moment when a voice message from loved ones can change everything. With Cobbr, your friends and family record encouragement messages that trigger automatically at the kilometers you've chosen during your race. On a course like Ealing where the atmosphere already carries you so much, imagine receiving your partner's or children's voice at the precise moment you need it most.

Ealing Half Marathon FAQ

What's the distance of the Ealing Half Marathon?

It's a standard 21.1km (13.1 miles) half marathon in a single loop, starting and finishing at Walpole Park in West London.

Is the course difficult?

The course is predominantly flat with gentle undulations, totaling 140 meters of elevation gain. It's a rolling route, accessible to runners of all levels, but the repeated short climbs require smart effort management.

What's the time limit?

The cut-off time is 3 hours to allow roads to reopen. Walking part of the course is fine but aim to finish within this window.

Is it suitable for first-time half marathoners?

Absolutely. The Ealing Half Marathon caters to all abilities, from beginners to experienced runners. The rolling course, exceptional atmosphere, and numerous volunteers make it an excellent choice for a first half. The 3-hour limit leaves time even for walkers.

What's the weather like in late September in London?

For this period, expect temperatures between 10°C (morning at the start) and 17°C (during the day). There's a 43% chance of rain, with average winds of 22 km/h. Plan adaptable kit and check the forecast a few days before.

How can friends and family support me on the course?

The best spectator points are on Uxbridge Road, Drayton Bridge Road, Pitshanger Lane and Cuckoo Avenue, with some allowing views of runners passing twice. Your loved ones can also use Cobbr to send you voice messages triggered at key kilometers of your race.

The Ealing Half Marathon combines a fast course, professional organization, and an incredible atmosphere. With 140 meters of elevation cleverly distributed and fully closed roads, it's an opportunity to chase a time on a rolling route while enjoying the amazing support of 30,000 spectators. Whether you're aiming for a personal best or simply the experience, this race will stay with you.