London Marathon 2026 preview: start zones in Greenwich, key landmarks on the course and practical tips for spectators and runners
The TCS london marathon returns in 2026 with organisers hoping for the largest field yet. Around 59,000 runners are expected to assemble between Greenwich Park and Blackheath, chasing everything from personal bests to fundraising goals. Last year the event set a Guinness World Record when 56,640 finishers completed the course; organisers are aiming to top that.
Among those lining up are veteran entrants including Harry Newton (88) and Maria Rivera (86), who represent the broad age range competing in this mass participation event.
Logistics for race day are tightly managed to handle the scale of the field.
There are three assembly areas — Blue, Green and Red Start — each linked to a colour on runners’ bibs and to different routes for the opening miles. Staggered timings keep the course flowing: the schedule includes the elite wheelchair event at 08:50, the elite women at 09:05, and the elite men plus the mass start at 09:35, with mass wave releases continuing through 11:30.
Runners can travel on TfL services for free by showing their bibs, which is a helpful perk for getting into the assembly areas.
How the route unfolds through the city
The course follows the familiar 26.2-mile line from Greenwich towards central London, threading past a sequence of well known landmarks. In the opening miles you leave Greenwich Park, pass through Charlton and Woolwich and drop toward the river where the route goes by the historic Cutty Sark. This quieter first section is designed to let runners settle into pace before the crowds intensify around the river crossings. The middle portion loops through Rotherhithe and Bermondsey on long, rhythm-friendly straights that help competitors find their groove.
Iconic moments and the toughest stretches
Crossing Tower Bridge around the halfway point is one of the most dramatic parts of the course: expect noise, camera flashes and an emotional boost. After Tower Bridge the route swings toward Canary Wharf and the Isle of Dogs, where winds and a series of turns can challenge pacing and GPS watches. As you approach miles 20–24, runners pass through zones famed for atmosphere, including the colourful Rainbow Row in Limehouse and the highly charged Run Dem Crew cheering spot. The final kilometres follow the Embankment and then Birdcage Walk, arriving at the final stretch along The Mall — a memorable finish framed by Buckingham Palace.
Crowd support and course profile
The London course is relatively flat overall, with a modest net downhill profile that many find suited to fast times. Total elevation change is limited compared with hillier marathons, but wind on exposed river sections and the psychological challenge of the last 10K make crowd support valuable. The presence of large, vocal groups along the Embankment and the Mall can provide the energy runners need when fatigue sets in. For spectators, these spots combine great views with the biggest crowds.
Viewing points, transport and spectator tips
If you plan to watch the race live, choose your location with travel and crowd levels in mind. Popular hubs such as the area around the Cutty Sark and the approaches to Tower Bridge will be heavily packed. Certain DLR and Tube stations near the route are expected to experience long queues; consider walking from neighbouring stations or using Overground options to avoid bottlenecks. Keep in mind that some central stations will operate entry or exit controls at peak times — aim to arrive early, set a meeting point with your group and leave contingency time for getting home.
Practical pointers for a smooth day
Spectators should check local road closures and plan journeys in advance because vehicle access will be restricted along large parts of the route. Runners should use the information emailed to them about their start wave and assembly area, keep their bib visible for free TfL travel and wear layers for pre-race waits. For families and groups who want to see a runner more than once, choose less congested stretches such as Rotherhithe or The Highway where movement between spots is easier.
Who to watch and how to follow the action
The field mixes elite athletes, club competitors, charity fundraisers and well known faces. Among the celebrity runners this year are Cynthia Erivo, James Norton and Jack O’Connell, while noted sports names include Sebastian Vettel, Sir Ben Ainslie, Sir Anthony McCoy, Dame Laura Kenny and Sir Alastair Cook. Erivo is returning after a 3:35:36 performance in 2026 and is running for charity. There is also a lively Mini London Marathon event for schoolchildren the day before. For live tracking, use official race apps and follow event updates from organisers and broadcasters to find split times and estimated finish windows for individual runners.
The official finish line on The Mall has a scheduled closure at 19:30, after which operational activity moves to St James’s Park until midnight. With tens of thousands on the move across the capital, planning ahead makes the difference between a stressful day and a memorable one — whether you are running, volunteering, fundraising or cheering on friends and family.
