Races in UK

The world's leading 10-mile road race — a flat, fast loop through historic Portsmouth along the seafront, past the docks and HMS Victory.

A legendary London 10-mile race along the Thames in Twickenham — a flat autumn classic for a personal best.

A hilly multi-terrain marathon through Cornwall's Clay Country to the Eden Project biomes — with a pasty and a beer at the end.

York's marathon: start at the university, the historic city, Yorkshire country lanes and a 10-mile race the same day.

A legendary mountain marathon around Snowdon since 1982: Llanberis Pass, Beddgelert and a plunging finish into Llanberis.

One of Britain's most scenic halves: start beneath Conwy Castle and a loop around the Great Orme.

One of Britain's fastest 10Ks — a flat out-and-back from Leeds city centre to Kirkstall Abbey, a late-November classic.

One of the world's biggest Santa runs: thousands of Santas run 5K along Liverpool's waterfront from Pier Head past the Liver Building.

Sheffield's legendary festive 10K: a flat course in the Loxley Valley where every finisher gets a real Christmas pudding.

One of Britain's fastest winter 10Ks — a flat, wind-sheltered course in Telford Town Park, a magnet for PB hunters.

A New Year's Day 10K through Hyde Park and Kensington Gardens in London — a flat, traffic-free run to start the year.

A wintry 10K through central London: penguins, huskies, live music and 26,000 runners fighting cancer.

One of Britain's classic half marathons: two laps of Georgian Bath with a finish below the Royal Crescent.

A fast half through the grounds of four Cambridge colleges — a rare chance to run where visitors usually can't go.

Reading's half since 1983: a fast route through the town centre and university campus, cheered by 15,000 spectators.

One of the UK's flattest halves: from city to sea along Swansea Bay towards Mumbles.

Three marathons in three days along the Jurassic Coast: Charmouth to Studland via Portland and Lulworth.

Brighton Marathon since 2010: start in Preston Park, the Ovingdean cliffs and a roaring seafront finish.

London's only half through Westminster and the City: the grand and the hidden London in 21 km.

Fifty miles along the chalk ridges of the South Downs from Worthing to Eastbourne, finishing with a track lap.

The UK's second-biggest marathon: flat and fast, 40,000+ runners and no ballot.

One of Europe's flattest marathons: Newport's riverfront, the Transporter Bridge and the Gwent Levels.

Tower Bridge at the halfway point, Big Ben at the finish — a marathon that runs straight through a postcard of London.

Belfast's marathon since 1982: start at Stormont's Parliament Buildings, finish in Ormeau Park, a whole-city party.

The Great Birmingham Run: a 10K and half from Centenary Square through the Jewellery Quarter and Digbeth.

The Great Bristol Run: a half marathon beneath the Clifton Suspension Bridge and a grandstand finish on Anchor Road.

One of Yorkshire's biggest half marathons: thousands of runners, big charity spirit and Headingley Stadium.

East London's favourite half: closed roads through Hackney, live music and roaring cheer zones.

Europe's biggest 10K plus a half marathon through central Manchester, finishing on Deansgate.

From central Edinburgh down to the sea at Musselburgh — the course drops almost 90 meters, making it one of the fastest in Britain.

A tough trail race in the Mendip Hills: a double loop, the infamous Hell Steps and views over Cheddar Gorge.

A marathon around Windermere, England's largest lake, on the scenic lanes of the Lake District.

Summer 10K on closed central London roads: start on Piccadilly, finish on Whitehall — a street party in trainers.

Fifty miles across the Lake District from Dalemain to Coniston — a cult British ultra.

Cancer Research UK's famous charity series: mass 5K and 10K in London's Hyde Park, women-founded and now open to all.

A charity city 10K through central Cardiff — past the Castle, the Principality Stadium and riverside parks, finishing by the Civic Centre.

A half from Tower Bridge to the Cutty Sark in Greenwich, through neighbourhoods tourists rarely see.

The world's biggest half marathon: from Newcastle over the Tyne Bridge to the sea at South Shields, 60,000+ runners.

Start inside the Royal Botanic Gardens at Kew, run along the Thames, finish at a festival in Richmond's Old Deer Park.

Northern Ireland's biggest half marathon, looping through all four corners of Belfast from Ormeau Park.

A coastal trail marathon on the Antrim coast: clifftops, beaches, rock scrambles and the Giant's Causeway itself.

A half marathon with 46 years of history in Robin Hood's city: the castle, the Trent embankment and Wollaton Park.

London's flagship city 10K from the London Marathon team — the only 10K in the capital to finish outside Buckingham Palace, past the city's landmarks.

One of Britain's biggest halves: start at Cardiff Castle, cross the Bay barrage and loop Roath Park Lake.

Billed as Britain's most beautiful marathon: trails around Kielder Water deep in Northumberland's forests.

Run Bournemouth: a seaside running weekend with a clifftop-and-promenade half past two piers and a dusk 5K.

A fast, flat autumn half through the university city of Oxford — a British October classic.

An autumn half through four of London's Royal Parks and past the capital's greatest sights.