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Half marathons are the ideal fitness challenge. Not as gruelling as a full marathon, but more testing than a 10k, they're the perfect middle ground to test your fitness and endurance.

If you're looking for a 2026 half marathon, the UK is set to host some incredible events in 2026. From sweeping coastal routes to buzzing city runs, there's a UK half marathon for everyone.

This guide will help you find the best UK half marathons for your preferences in 2026, from scenic standouts to high-octane challenges and iconic UK cityscapes.

Note: Many of the bigger events sell out fast, e.g., Inverness, Cardiff, Hackney, Liverpool and Brighton. So, in some cases, this may be the time to plan way ahead for 2027.

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🌿 The best scenic half-marathons in the UK

💪 The toughest half-marathons in the UK

🏙️ The best city half marathons in the UK

👀 UK half marathons to watch for 2027

The Best Scenic Half Marathons in the UK

If you're going to spend 13.1 miles achieving a fitness goal, you might as well do it somewhere with breathtaking views. These scenic races will soon have you signing up and reaching for your running shoes.

1. Stornoway Half Marathon: The Wild Island Trail-Road Hybrid

Runners are treated to views of the 19th-century Gothic Lews Castle, nestled in 600 acres of runnable forest trails

When is Stornoway Half Marathon?: Saturday, 23 May 2026.

Cost of entry: Early bird entry (before 31 December 2025) £30 / £28 affiliated, standard entry (from 1 January 2026) £35.00 / £33 affiliated.

Celebrating its 41st anniversary in 2026, the Stornoway Half Marathon is a crown jewel of Scotland's Outer Hebrides islands.

Kicking off at the bustling Inner Harbour, the route doubles up as a tour of the town, before entering the breathtaking Lews Castle Grounds.

Here, the terrain shifts to high-quality, runnable gravel trails as you wind through Willow Glen, pass the historic Creed Lodge, and catch glimpses of the rugged coastline.

With a total elevation gain of roughly 225 metres, it's a varied course that rewards your climbing with stunning views across a wild stretch of Atlantic water known as 'the Minch'.

The Stornoway Half is a full-weekend island adventure, featuring famous Hebridean hospitality. Ending with a post-race buffet and an evening of ceilidh, you'd be hard-pressed to find a better after-party on the UK running scene.

2. Marlow Half Marathon: The Golden-Leafed Leg-Burner

The hills are worth the hustle — peak autumn colours on one of the toughest courses in the UK running calendar

When is the Marlow Half Marathon?: Sunday, 1 November 2026.

Cost of entry: Standard entry £24-£39 / affiliated entry £22-37, depending on time of booking.

If you like your runs scenic but challenging, the Marlow Half Marathon is a premier choice. This isn't a course for PB chasers. Rather, it's a vertical tour of the Chilterns National Landscape and the picturesque Hambleden Valley.

The route is famous for its undulations — a polite term for the 1,020 feet (311m) of elevation gain packed into a single loop.

Starting in the heart of Marlow, you'll climb toward the course high-point at Parmoor before a steep, technical descent into the valley. The payoff is worth every lung-busting mile. The rewards include crisp air, historic villages, and some of the most stunning golden-leafed countryside in southern England.

3. Coniston 14: The Lakes' Finest 'Almost' Half Marathon 

The Coniston 14 route offers views of Coniston Water, one of the most serene settings in the Lake District

When is the Coniston 14?: Saturday, 21 March 2026.

Cost of entry: £32.95

The Coniston 14 isn't technically a half marathon - it's slightly longer at 14 miles, hence the name. But let's not split hairs - if you can run 13.1 miles, then an extra 0.9 can't hurt, right?

Set in the heart of the Lake District, this fully road-based route circles the entirety of Coniston Water in a spectacular counter-clockwise loop.

While the 1,017 feet (310m) of elevation gain is challenging, the views of the Coniston Old Man and the historic Brantwood house at mile 11 provide the perfect distraction.

Unlike mass-participation city races, every finisher here is rewarded with a unique hand-finished slate coaster crafted by the local Burlington Slate Quarry — a true Cumbrian badge of honour.

This run is known for being superbly organised by local volunteers, giving it a proper community feel. When it comes to the best scenic races in the UK, the Coniston 14 is always in the conversation.

4. Isle of Man Half Marathon: The Undulating Coastal Classic

Rural lanes near Ramsey, a defining feature of the Isle of Man Half Marathon, voted one of the UK's top ten most scenic races

When is the Isle of Man Half Marathon?: Sunday 9 August 2026.

Cost of entry: £33-£45, with £5 discounts for club-affiliated runners.

For a runcation that feels truly off-the-beaten-track, the Isle of Man Half Marathon is the one for you. This race offers a high-speed tour of the island's wild northern parishes on a route known as the Manx Northern Course.

Starting on the iconic Mooragh Promenade in Ramsey, you'll head north toward the village of Bride. The first five miles are pleasingly undulating, reaching the course high-point of 259 feet (79m) at mile four and offering sweeping views across the Irish Sea.

From there, the route flattens out through the lush, rural lanes of Andreas and St Judes before a fast, coastal finish back in Ramsey's Ballacloan Stadium. Keep an eye out for the local wildlife; it's not uncommon to spot a few inquisitive Loaghtan sheep along the way.

The Toughest Half Marathons in the UK

Not for the faint-hearted, these races will test your legs and your will to live.

5. Sheffield Half Marathon: The Triple-Test Peak District Challenge

Sheffield Half Marathon runners are rewarded with sweeping views of the Peak District's unique gritstone edges

When is the Sheffield Half Marathon?: Sunday, 29 March 2026

Cost of entry: £46 for general entry, or £56 with an official runners' t-shirt. £50 for members of UK Athletics clubs. All entry tiers include a finishers' medal. 

Sheffield isn't just known for steel, Arctic Monkeys and Henderson's relish. It also hosts one of the most punishing UK half marathons on the calendar.

With an elevation gain that rivals the height of the Eiffel Tower, this race is not for the faint-hearted.

The first five miles are all uphill. Once you've conquered that, however, you'll be rewarded with breathtaking views of the Peak District before a much-needed downhill stretch to the finish.

If your quads can handle it, this is undoubtedly one of the best half marathons the UK has to offer for those who like their races with a side of suffering.

6. Broadway Half Marathon: The High-Altitude Heart of the Cotswolds

Passing honey-coloured cottages and winding through country lanes, the Broadway Half Marathon is as scenic and quintessentially English as it is tough

When is the Broadway Half Marathon?: Monday, 16 November 2026.

Cost of entry: £39.

If you want a race that combines postcard-perfect Cotswold charm with a serious vertical test, this is it.

The Broadway Half Marathon is a 13.2-mile circular tour that starts with its most famous feature: a relentless, 1,000ft ascent within the first two miles.

You’ll reach the Broadway Tower, the highest point in the northern Cotswolds, for panoramic views of the Vale of Evesham before descending into the historic villages of Snowshill and Stanway.

Expect technical trails, ancient woodlands, and enough Cotswold mud to make your finish-line medal feel truly earned.

7. Snowdonia Half Marathon: The UK's Ultimate 1,900ft Road Test

The Snowdonia Half Marathon route passes along the shores of the breathtaking Llyn Geirionydd

When is the Broadway Half Marathon?: Sunday 10 May 2026

Cost of entry: £40-£42, depending on time of entry

If you're looking for a PB, look elsewhere. If you're looking for glory, the Snowdonia Half Marathon is widely regarded among runners as one of the most challenging half marathons in the UK.

Starting and finishing in the historic market town of Llanrwst, this race is famous for its relentless climbs through the Gwydir Forest.

The route is a masterclass in elevation, featuring a legendary ascent that begins almost immediately, taking runners deep into the heart of the Eryri (Snowdonia) National Park.

You'll navigate paved but punishing forest roads, passing the scenic Llyn Geirionydd and Llyn Crafnant, before a quad-shredding descent back into the Conwy Valley.

Best City Half Marathons in the UK

If you get a kick out of running past urban sights and cheering residents, here are some of the best UK half marathons for city-loving runners.

8. Ealing Half Marathon: The Half with a Heart

Leafy West London charm and the residential backdrop that makes the Ealing Half Marathon feel more like a neighbourhood festival than a gruelling race.

When is the Ealing Half Marathon?: Sunday, 27 September 2026.

Cost of entry: £45 (£47.37 including fees) for standard entry, £43 (£45.37 including fees) for affiliated entry.

If you want a city race with a personal touch, this is a great choice. Voted the UK's best half marathon by the Running Awards three years in a row, Ealing Half Marathon is known for its unique mix of elite-level organisation and grassroots community spirit.

This fully road-closed course starts and finishes in the iconic Walpole Park. The single-lap route is a scenic tour of West London, winding through Central Ealing, Montpelier, Pitshanger, Hanwell, and St Stephen’s.

While the course is rolling, featuring around 140m of elevation gain, the 30,000-strong crowd and 700+ volunteers provide the encouragement to carry runners through those final miles.

Taking place in leafy West London, this closed-road race offers a challenging but rewarding route with plenty of twists and turns through Ealing's scenic streets and parks.

9. Great North Run: The World's Largest Half Marathon

Newcastle's Tyne Bridge spans the River Tyne — the historic landmark where the Great North Run truly begins.

When is the Great North Run?: Sunday, 13 September 2026.

Cost of entry: Ballot system entry ~£65-£68 for successful applicants. Charity entry registration fees are usually ~£25-£50, plus a minimum fundraising pledge of ~£300-£500.

The Great North Run is a true British sporting institution and the largest event of its kind globally. For its landmark 45th anniversary this year, a record field of 60,000 runners will make the point-to-point journey from the city to the sea.

Passing through Newcastle City Centre and winding through echoing tunnels, runners enjoy incredible views from the Tyne Bridge, the race's most celebrated landmark.

This is the prime viewing spot for the Red Arrows flypast — a ceremonial low-altitude flight by the RAF’s aerobatic team that leaves trails of red, white, and blue smoke across the sky.

After crossing into Gateshead, the course winds through South Tyneside, ending with a spectacular mile-long coastal stretch in South Shields.

In 2026, the event will also feature a unique visual identity created by Newcastle street artist Mul, whose famous Running Heart character will appear on every finisher's medal and t-shirt.

10. Belfast City Half Marathon

The striking Titanic Belfast museum is a centerpiece of the race’s fast and flat route through the city’s regenerated Titanic Quarter.

When is the Belfast City Half Marathon?: Sunday, 20 September 2026.

Cost of entry: Standard entry £44-£50 or £42-£48 for affiliated runners, depending on time of booking.

If you're hunting for a personal best in a city buzzing with energy, the Belfast City Half Marathon is your 2026 priority.

As part of Belfast's European City of Sport celebrations, this race is Northern Ireland's largest half marathon, famous for its incredible crowd support and flat course.

Starting and finishing in the historic Ormeau Park, the route is a high-speed tour of the capital. You'll sprint past the City Hall, wind through the Titanic Quarter beneath towering cranes, and pass the brand-new Belfast Grand Central Station.

With an elevation gain of just 82 metres, it's a dream for both first-timers and PB chasers looking for an effortless glide through the city's most iconic neighbourhoods.

11. Chester Half Marathon: The Historic Roman City Landmark Run

Runners enjoy waterside River Dee views before the final push towards the historic Town Hall finish line.

When is Chester Half Marathon?: Sunday, 17 May 2026.

Cost of entry: Standard entry is £48, late entry (from 11 May 2026) is £52. 

Starting and finishing in the Roman city of Chester, this race is one of the UK's longest-established and most prestigious half marathons.

Celebrating its 43rd anniversary in 2026, the event is a multi-award winner, famous for its perfect blend of ancient history and flat, fast-paced rural lanes.

The route begins at Chester Racecourse before heading through the Medieval rows past Chester Cathedral, and out through the Roman Walls.

After the urban start, you'll head into the lush Cheshire countryside through the villages of Mollington and Saughall, before a triumphant city-centre finish outside the Town Hall.

Keep your eyes peeled for gladiators in full armour, who often join the 6,000-strong field. Talk about a truly unique photo opportunity.

12. Edinburgh Half Marathon: The Premier Destination Runcation

Soak up Edinburgh's historic urban landmarks and stunning coastal views on this downhill course

When is Edinburgh Half Marathon?: Sunday 24 May 2026.

Cost of entry: ~£46.

If you want to smash your personal best, there is no faster course in the UK. The Edinburgh Half Marathon is famous for its net-downhill profile, featuring a dramatic 90-metre descent from the city centre to sea level.

Taking place on Sunday, 24 May 2026, the race starts at the historic Potterrow with the McEwan Hall as your backdrop.

You'll wind through the Old Town, passing the famous Greyfriars Bobby dog statue and the Royal Mile, before heading toward the Scottish Parliament and Arthur's Seat.

The final eight miles are a coastal sprint along the Firth of Forth, passing the Portobello Promenade before a high-energy finish at Musselburgh Racecourse.

UK Half Marathons 2027: Ones to Watch

Four Villages Half Marathon: The Cheshire Countryside Winter Warm-Up

Helsby's peaceful streets are home to the start and finish lines of the Four Villages Half Marathon

When is the Four Villages Half Marathon?: January 2027, follow the event's website and social accounts for registration alerts.

If you want to kick off your 2027 season with a gold-standard road race, the Four Villages Half Marathon is the insider's choice.

This legendary winter event is so popular that it famously sells out within hours of registration opening. Taking place in January 2027, the route is a scenic, single-lap tour of the frozen Cheshire landscape.

Starting and finishing in Helsby, you'll wind through the picturesque villages of Dunham-on-the-Hill, Mickle Trafford, and Thornton-le-Moors.

While the course is predominantly flat and fast — making it a prime target for an early-season PB — the infamous Helsby Hill finish at mile 12 ensures you earn your post-race technical tee.

Hampton Court Half Marathon: A Riverside Dash Through Tudor History

Hampton Court Half Marathon scenery includes the redbrick Tudor Gatehouse, where Henry VIII once held court.

When is the Hampton Court Half Marathon?: 15 February 2026.

More English than fish and chips with a side of tea and scones, the Hampton Court Half Marathon is one of the UK's most scenic races.

Starting at Giggs Hill Green in Thames Ditton, this flat, fast loop takes you over Hampton Court Bridge and along the three-mile Barge Walk for the ultimate riverside view of the Palace.

You'll wind through Kingston's Ancient Market Place, passing the 1,000-year-old Coronation Stone before crossing Kingston Bridge to head for home.

It's the perfect blend of royal history and PB potential. Great for a forgiving, atmospheric course that feels like a victory lap through time.

Great North West Half Marathon: The Breezy Blackpool Promenade Challenge

Blackpool is just one of many bracing seaside half marathons our island nation offers

When is the Great North West Half Marathon?: Sunday, 14 February 2027.

If you live for the fresh sea air, the Great North West Half Marathon is an exhilarating coastal challenge. And what better day to declare your love for running than 14 Feb?

Taking place along the iconic Blackpool promenade, this fast-paced race offers sweeping views of the coast and the famous Blackpool Tower.

An ideal, breezy warm-up for runners preparing for their larger spring marathons later in the season.

Media City Half Marathon: The Salford Quays High-Tech Urban Circuit

With its wide walkways, waterside location and urban views, Media City Half Marathon is an enjoyable jaunt.

When is the Media City Half Marathon?: Sunday 21 February 2027.

For city runners looking to smash their records, the Media City Half Marathon is a fantastic urban event. Set in the heart of Salford, this closed-road, two-lap course is incredibly flat and well-paved.

With a reputation for a high-octane, music-filled atmosphere, it's a high-speed tour of the North's digital hub.

Watch this Space for The Big Dipper: The Peak District's 1,675ft Rollercoaster

You want hills? The Big Dipper's got 'em, and how. / Adobe Free Stock

No UK half marathon list would be complete without mention of the Big Dipper. But we've had to pull this beast of a race from the main section to 'on hold' while its future is decided. For the time being, here's why it should be on your radar if you're up for a challenge.

The name says it all. The Big Dipper is widely regarded as the toughest half marathon in England, featuring an eye-watering 1,675ft of ascent — 100ft shy of New York's One World Trade Center. 

This rollercoaster of a race winds through the North Derbyshire countryside and the stunning Peak District National Park.

Relentless hills will push your endurance to its limits, but the views — and the bragging rights — make it worthwhile when you cross the finish line.

If you want a half marathon that makes your legs cry and your heart sing, this is the one.

Tips for Planning Your 2026 UK Half Marathon 

• Book way in advance: Half marathons in the UK sell out fast. Book your bib and accommodation early doors to avoid being overcharged and running out of good hotel options.
• Layer up: The weather here is unpredictable to say the least. Layers are key to regulating your temperature and avoiding the worst of those spontaneous rain showers we all know and love.
• Sleep early, leave early: Most runs start early on Sunday morning. And with roads often cut off and traffic diversions in place, journey times will be longer. Adding another third onto Google Maps' predicted journey time should get you to the start line smoothly.

Run to Victory, Not Out of Data

It's great to know you're at peak fitness and looking to achieve your running goals for 2026. But everyone knows the point of running a half marathon in the UK is to share your PB and medal pics on social media. 

Planning ahead with a UK eSIM from Airalo helps you stay connected to your fitness tracker, maps and race updates without missing a step. Check out affordable data packages to stay connected in the UK here:

FAQS: The Best UK Half Marathons in 2026

1.) What are the best UK half marathons for achieving a personal best?

The best UK half marathons for setting a new personal best include flat, fast-paced events like the Edinburgh Half Marathon and the Media City Half Marathon. If you are looking for the best half-marathons to test your speed, then closed-road city races with minimal elevation are the ideal choice.

2.) Which are the most scenic half marathons in England?

Some of the most scenic half marathons in England include the Coniston 14 in the Lake District and the Marlow Half Marathon through the Chiltern Hills. These stunning UK Half Marathons offer breathtaking countryside views, making them a beautiful and challenging alternative to crowded urban routes.

3.) What is the best half marathon in Northern Ireland?

The Belfast City Half Marathon is widely considered the best half marathon in Northern Ireland, offering a flat, highly-supported route through the city's historic heart. It stands out as a top choice for anyone looking to complete a fast half marathon UK event while taking in iconic landmarks like the Titanic Quarter.

4.) How early should I book the best half marathons UK events?

You should aim to book the best half marathons UK events at least six to nine months in advance, as massively popular races sell out incredibly fast. Securing your spot early for any major half marathon 2026 race ensures you also have time to book affordable accommodation before local hotels fill up.

5.) Are there any extremely challenging half marathons 2026 runners should try?

For a serious test of endurance, the Sheffield Half Marathon and the Broadway Half Marathon are among the toughest half marathons 2026 has to offer. These hilly, punishing routes are perfect for experienced runners seeking a gruelling challenge beyond the standard flat coastal courses.

Running Inspiration: More Half Marathon Tips and Ideas