The countdown to one of the world’s most iconic running events is on, as the London Marathon 2025 prepares to take over the capital on Sunday, April 27. Drawing tens of thousands of runners and even more enthusiastic supporters, the event transforms the city into a buzzing celebration of fitness, determination, and community spirit.

Whether you’re cheering on a loved one, taking part in the race yourself, or simply trying to plan your travel around the disruptions, staying informed is key. From early-morning road closures and packed tube stations to the best spots to catch the most thrilling moments of the marathon, preparation is everything.

Here’s your complete guide to everything you need to know.

Significant road closures will be in effect across the city from the early hours of Sunday, April 27.

Westcombe Park

• Closed from 4am: Shooters Hill Road

• 7am to 3pm: St Johns Park, Old Dover Road, Charlton Way, Vanbrugh Park, Charlton Road, Charlton Park Road, Charlton Park Lane, Woolwich Road (A206)

Canary Wharf

Woolwich

• 7.30am to 2.30pm: Artillery Place and John Wilson Street

• 7am to 3pm: Woolwich Church Street and Woolwich Road

• 7am to 4pm: Trafalgar Road

Greenwich

• 7am to 4pm: Romney Road, Creek Road, part of Greenwich Church Street

• Creek Road crossing is open until 8:40am and reopens after 2:15pm

Isle of Dogs

Deptford

Rotherhithe

• 8am to 4pm: Surrey Quays Road, Salter Road, Brunel Road, Jamaica Road

Wapping

• 8am to 8.30pm: Tower Bridge, The Highway, Narrow Street, Westferry Road, Commercial Road

Westminster

• 5am Thursday 24 April – 6pm Monday 28 April: The Mall, Marlborough Road

• Additional closures from Friday to Monday include Spur Road, Constitution Hill, Horse Guards Road, Birdcage Walk

Trafalgar Square

• 7.30am to 9pm: Pall Mall East, Cockspur Street, Strand, Charing Cross Road, Duncannon Street

Queen Anne’s Gate

Looking for a great spot to watch the action? Here are some top picks based on race highlights and crowd atmosphere:

Start Line: Blackheath & Greenwich

• Catch the beginning of the race

• Closest stations: Greenwich, Cutty Sark DLR, Blackheath rail

Mile 12-13: Tower Bridge

Mile 13 & Mile 22: Shadwell

Mile 16: Canary Wharf

Mile 17: Mudchute

• Less crowded, family-friendly spot near Mudchute Farm

• Closest station: Mudchute DLR

Mile 21: Limehouse

Mile 24: Blackfriars Underpass

Final Stretch: Mile 25 to 26.2

• Help runners dig deep in the final push

• Meet-up point: Horse Guards Road and Parade

• Closest stations: Embankment, Charing Cross

Whether you’re a participant or just soaking in the atmosphere, the London Marathon 2025 promises to be an unforgettable event. Lace up, or cheer on, and enjoy the day!