London Marathon 2026: Date, Route, Start Time, Weather, Viewing London 2026

Key Points

• The TCS London Marathon 2026 takes place on Sunday, April 26, 2026, bringing tens of thousands of runners to London.
• Over 59,000 participants are expected, surpassing the 56,000 from the 2025 edition.
• The 26.2-mile route starts in Blackheath and Greenwich, winds through south-east and central London, and finishes on The Mall near Buckingham Palace.
• Road closures will affect large parts of London from morning until evening on race day.
• Notable entrants include Cynthia Erivo (Elphaba in Wicked films), Tony Adams (former Arsenal and England captain), Dame Laura Kenny (seven-time Olympic cyclist), and Joe Wicks (running for National Deaf Children’s Society).
• Staggered start times: Elite Wheelchair at 8:50 AM, Elite Women’s at 9:05 AM, Elite Men’s and first mass wave at 9:35 AM, final mass wave at 11:30 AM.
• TCS Mini London Marathon occurs on Saturday, April 25, for school students running the final mile.
• Route highlights: Cutty Sark (Mile 6), Tower Bridge (Miles 12-13), Canary Wharf (Miles 18-20), Big Ben and Parliament Square before The Mall finish.
• Weather forecast: Cloudy, high of 18°C, low of 8°C, 10% chance of rain, easterly wind at 6 mph.
• Viewing options: Live on BBC One and BBC iPlayer from 8:30 AM (UK); FloTrack for USA, Canada, Australia. Best in-person spots: Greenwich, Embankment (Mile 24), Rotherhithe, The Highway.

London (The Londoner News) April 25, 2026 – Tens of thousands of runners are poised to converge on the capital tomorrow for the TCS London Marathon 2026, one of the world’s premier mass-participation sporting events. Over 59,000 participants, exceeding last year’s 56,000, will tackle the iconic 26.2-mile course from Blackheath and Greenwich through central London to The Mall, with staggered starts beginning at 8:50 AM and road closures disrupting traffic across key areas until evening.

When Is the London Marathon 2026?

The 45th edition of the TCS London Marathon is scheduled for Sunday, April 26, 2026. This date aligns with the event’s traditional late-April slot, allowing optimal spring conditions for runners and spectators alike.

As confirmed by official organisers, the marathon returns to its annual calendar position following the 2025 event, which drew 56,000 finishers.

The slight uptick to over 59,000 entrants reflects growing global interest in this World Marathon Major.

The preceding day features the TCS Mini London Marathon on Saturday, April 25, 2026, inviting students from selected schools to run the final mile into The Mall, fostering youth engagement.

What Is the Route for the London Marathon 2026?

Runners begin in Blackheath and Greenwich, setting off from Greenwich Park, a tradition since the inaugural 1981 marathon. The course then snakes through south-east London landmarks before culminating on The Mall in front of Buckingham Palace.

What Are the Key Landmarks on the Route?

The route remains faithful to the 1981 blueprint, showcasing London’s historic and modern sights. At Mile 6, participants reach the Cutty Sark in Greenwich, a popular early cheer zone.

Miles 12-13 cross the Tower Bridge, one of the most electrifying spectator spots where the field’s energy peaks.

From Miles 18-20, runners navigate the gleaming skyscrapers of Canary Wharf, offering a contemporary contrast to the historic stretches. The final push sees competitors pass Big Ben and Parliament Square en route to the finish line on The Mall.

This unchanging path ensures familiarity for elite athletes while captivating newcomers with its blend of heritage and skyline views.

Who Is Taking Part in the London Marathon 2026?

The 2026 field boasts a mix of elite athletes, club runners, charity fundraisers, and celebrities, totalling over 59,000 – a record surpassing 2025’s 56,000.

Standout celebrities include Cynthia Erivo, known for portraying Elphaba in the Wicked films, bringing showbiz glamour to the start line.

Former Arsenal and England captain Tony Adams, a football icon, joins the masses, leveraging his profile for good causes.

Seven-time Olympic cycling champion Dame Laura Kenny returns post-maternity, embodying resilience. Fitness influencer Joe Wicks runs in support of the National Deaf Children’s Society, highlighting the event’s charitable core, which raised millions last year.

Elite races feature top wheelchair and able-bodied competitors, with mass waves accommodating everyday heroes.

What Is the Schedule for the TCS London Marathon 2026?

Staggered timings manage the massive field efficiently. 8:50 AM launches the Elite Wheelchair races, followed by Elite Women’s race at 9:05 AM.

9:35 AM sees the Elite Men’s race alongside the first mass participation wave. The final mass wave departs at 11:30 AM, ensuring a steady flow to The Mall.

These slots prioritise elites while giving amateurs ample space, a system refined over decades.

What Will the Weather Be Like on Marathon Day?

Forecasts indicate cloudy conditions with a high of 18°C and a low of 8°C. A 10% chance of rain accompanies an easterly wind of 6 mph, promising mostly dry racing.

As reported by meteorologists monitoring April trends, such mild spring weather suits endurance efforts, though runners should prepare for variable cloud cover. Recent data notes similar patterns, with highs around 20°C possible in preceding days, but race-day specifics hold steady.

Participants are advised to check updates closer to start time, as London weather can shift swiftly.

What Are the TV and Streaming Options?

Live coverage airs on BBC One and BBC iPlayer from 8:30 AM, capturing every wave for UK viewers. International audiences in the USA, Canada, and Australia tune into FloTrack for comprehensive streams.

This multi-platform approach ensures global access to the drama, from wheelchair sprints to celebrity finishes.

Where Are the Best Spots to Watch in Person?

Prime vantage points include Greenwich for early action and Embankment at Mile 24 for the tiring final stages. For quieter vibes, Rotherhithe and The Highway offer less crowded cheers.

Spectators should arrive early, as roads close progressively from morning, with closures lasting till evening across south-east and central zones. Public transport remains key, with TfL advising diversions.

What Road Closures Should Drivers Expect?

Large swathes of London face full closures from early morning through evening, impacting Blackheath, Greenwich, Tower Bridge, Canary Wharf, and The Mall approaches. Organisers urge avoiding the area entirely, with Blackwall Tunnel and key bridges affected.

As per event logistics, diversions and bus changes will operate, but walking or cycling proves wisest for locals. This annual disruption underscores the marathon’s scale, prioritising safety for 59,000 runners.

Why Is the London Marathon a Must-See Event?

Since 1981, the TCS London Marathon has evolved into a global spectacle, blending elite competition with mass charity runs raising over £1 billion lifetime. Its flat, scenic route and electric crowds draw participants worldwide, cementing status as a World Marathon Major alongside Boston, New York, Chicago, Berlin, and Tokyo.

The 2026 edition promises heightened buzz with celebrity draws like Erivo, Adams, Kenny, and Wicks, amplifying fundraising for causes from children’s societies to health charities.