London Marathon 2026: The Complete Training and Race Guide

The London Marathon is the race most British runners dream about. It is the biggest single-day fundraising event in the world, the fastest of the World Marathon Majors on its day, and the only major where a charity bib is the most realistic way in for the average club runner. If you have your sights set on a TCS London Marathon bib for 2026, this is the full picture: every way in, the course mile by mile, a 16-week training framework, what to wear in April, where to stay, and how to handle the unique start logistics of three start zones in Greenwich Park.

What makes the London Marathon special

London is the UK's flagship marathon and one of the most coveted bibs in the running world. Founded in 1981 by Chris Brasher and John Disley, it has grown into a 50,000 plus runner spectacle, the largest marathon in the UK and the second largest in the world after New York City. Half a million people apply through the public ballot every year for around 17,000 places, giving it some of the steepest odds of any sporting event on the planet.

It is also the world's biggest single-day fundraising event. Since the first race in 1981, runners have raised more than £1 billion for charity, and roughly a third of every year's field is wearing a charity vest. That gives London a feel no other major has. The crowds know that the person grinding past at mile 22 is probably running for someone they love, and they roar for everyone.

The course itself is iconic. You start in Greenwich, run past the Cutty Sark at mile 6, cross Tower Bridge at the halfway point, loop through Canary Wharf, then ride the Embankment all the way to The Mall, finishing in front of Buckingham Palace. It is net flat with only a few gentle rises, which is why it has produced two world records in three years: Kelvin Kiptum's 2:01:25 in 2023 and Tigist Assefa's 2:14:04 in 2025.

How to enter the London Marathon

There are six realistic routes into the TCS London Marathon. Most British runners get in through the ballot or a charity. International runners typically use a tour operator package. Faster runners use Good for Age or Championship Entry. Club members get an extra ballot.

1. Public ballot. Open to anyone over 18. Around 3 to 4 percent acceptance rate. £49.99 entry fee, refunded if unsuccessful. Opens late April for the following year's race.
2. Good for Age (GFA). Qualifying times by age and gender. A capped allocation, so you may run the qualifying time and still miss out if demand exceeds the cap.
3. Championship Entry. Much faster than GFA. Sub-2:45 for open men, sub-3:15 for open women. Reserved for the fastest sub-elite club runners.
4. Charity bibs. Most accessible route for most runners. Fundraising minimums sit between £2,000 and £3,000 plus.
5. Club entries. UK Athletics-affiliated club runners get an additional ballot draw on top of the main public ballot.
6. Tour operator packages. The official route for international runners. Costs typically £130 to £160 plus travel and accommodation.

The London Marathon ballot explained

The public ballot is the cheapest and fairest route in, and also the longest shot. Applications open for a short window in late April, just after the current year's race finishes, and the entry fee is £49.99. If you are not selected, that fee is refunded in full. If you are selected, the fee covers your bib, finisher medal, and event entry.

Around 500,000 people apply each year for roughly 17,000 ballot spots, putting acceptance at about 3 to 4 percent. Successful applicants find out in the autumn, around October. Unsuccessful runners get the famous Sorry, you have not been successful this time jacket, which has become a strange badge of honour at parkruns up and down the country.

Some runners apply for five or six years before getting through. If you cannot wait that long, charity and Good for Age are your two main alternatives.

Good for Age qualifying times

Good for Age (GFA) gives faster runners a guaranteed shot at an entry, although the allocation is capped each year and the cutoff often comes in faster than the published standard. Here are the headline times for the 2026 race. Use them as a guide and always check the official site for the current cap.

Qualifying times must be run at an officially measured marathon within a defined qualifying window, usually around two years before race day.

The course mile by mile

London's course is one of the fastest in the World Marathon Majors, and it is also one of the most fun to run. You start in three different zones in Greenwich (Blue, Red, and Green), all of which feed into the same route by mile 3. From there it is a tour of London past some of the city's most recognisable landmarks.

• Miles 1 to 3. Three start areas (Blue, Red, Green) leaving Greenwich Park. Slight downhill in places. Avoid the temptation to fly out, especially with fresh legs and adrenaline. The three routes converge near Woolwich Road before mile 3.
• Mile 6: Cutty Sark. One of the loudest spots on the course. The crowds around the historic clipper ship will lift you. Smile, wave, and keep your pace honest.
• Miles 7 to 12. A meandering loop through Bermondsey and Surrey Quays. Less crowd noise than the early miles, a good moment to lock in your race pace.
• Mile 12: Tower Bridge. The iconic moment of the race. Crossing the bridge with thousands of supporters lining both sides is one of the most photographed moments in marathon running. Right after the bridge, you can see the faster runners coming back the other way at mile 22.
• Miles 13 to 18: Canary Wharf and the Isle of Dogs. The flat, slightly twisting loop through London's financial district. Tall buildings cut some of the GPS signal, so do not panic if your watch beeps a touch early or late at the mile markers.
• Miles 19 to 21. Back along The Highway towards the Tower of London. This is where most people meet the wall. Stay smooth, drop your shoulders, focus on form.
• Mile 22: Tower of London. You can almost smell the finish. The Embankment opens up in front of you.
• Miles 23 to 25: Embankment. Long, straight, slightly tedious if you are hurting, but the crowds are five deep and the river is on your left. Big Ben grows on the horizon.
• Mile 26: Birdcage Walk and The Mall. Right at Big Ben, past the Houses of Parliament, along Birdcage Walk, then the famous right turn at Buckingham Palace onto The Mall. The finish line is in front of you, lined with flags. You are running on the same tarmac the elites finished on a few hours earlier.

Good for Age cutoff math: why a qualifying time isn't a guarantee

London's GFA system is capped. The published qualifying times are the minimum you need to apply, but the actual cutoff is set after applications close, based on how many faster runners applied. In recent years the cutoff has come in noticeably faster than the published standard for the most popular age groups, particularly open men and open women.

The practical takeaway: if you are aiming for a GFA place, try to beat the published time by 3 to 5 minutes to give yourself a buffer. A sub-2:55 open men's time, for example, is much safer than a 2:59. If you are 30 seconds inside the published cutoff, treat it as a hopeful application, not a guaranteed entry, and have a charity backup ready.

How long should you train for the London Marathon?

A 16-week block is the sweet spot for most runners with a base of 15 to 20 miles per week. New runners coming from a slower start often benefit from 18 to 20 weeks. Experienced runners with a year-round base can sharpen up in 12 to 14 weeks.

For London 2026, a 16-week plan starts in early January, and an 18-week plan starts just after the new year. That is enough time to build your long run from around 10 to 12 miles up to 20 to 22 miles, layer in some marathon pace work, and taper for two to three weeks.

A simple 16-week London training framework

Here is the shape of a balanced 16-week build for London. Treat it as a map, not a recipe. Your actual plan should flex around your starting fitness and how your body responds.

This is where Edge fits in. Edge builds your starting 16-week plan around your real current fitness, not a generic template. If life gets in the way, you can use Flexi Swap to move sessions around, and you can speak directly to Edge AI for 30 second answers when you have a question, or message a coach. Strength and mobility sessions are built into the plan from week one, and every session links to a coach video demo so you know exactly what to do. Edge syncs directly with Strava, Garmin, Apple Watch and Coros.

Race day strategy

London's race day has a few quirks worth planning for. Elite women start at 9:00am, the wheelchair race at 9:25am, and the elite men plus the mass field roll off from 10:00am. Most mass runners will not actually cross the start line until 10:30 or later, depending on their wave. That means you might be at Greenwich Park for an hour or more before you actually start running.

A few simple race day rules that work for most runners:

• Pace the first 10K conservatively. The downhill sections in the first three miles tempt fresh legs into running 15 to 20 seconds per km too fast. Hold back. You will thank yourself at mile 22.
• Use Tower Bridge as a mental anchor, not a pace target. Aim to reach halfway feeling like you are working at maybe 7 out of 10. Then take stock.
• The Canary Wharf miles are the test. Miles 15 to 18 are mentally hard because the crowds thin out a bit and you can feel the distance creeping in. Lock in, focus on form.
• Empty the tank from mile 22. Once you hit the Embankment, the noise is huge and the finish is real. If you have anything left, this is the time.

What to wear and pack for April London weather

April in London usually sits between 10 and 15 degrees Celsius on race morning, with a chance of light rain. But it can swing. The 2018 race hit 24 degrees and became one of the hottest London Marathons on record, with many runners struggling badly with the heat.

A sensible packing list:

• Race vest or t-shirt you have worn for at least one long run.
• Shorts you have run 20 plus miles in without chafe.
• Throwaway long sleeve top and old joggers for the start. It will be cold standing around for an hour.
• Bin bag as an extra wind and rain layer in the queue.
• Cap or visor if the forecast leans warm.
• Anti-chafe balm everywhere it might rub.
• Your most reliable trainers, not a brand-new pair.
• Gels, the ones you have tested in training, not the ones in the goody bag.

Where to stay in London for marathon weekend

London is huge, so location matters. The best areas, ranked by what you actually need on race morning and after the finish:

• Greenwich and Blackheath. Walk or short bus to the start. Quieter neighbourhood feel. Limited hotel stock, books up early.
• Central London (Westminster, Victoria, Pimlico). Walk to the finish at The Mall. Easy DLR or train to the start. Most expensive option but the least logistics on tired legs.
• South Bank and Waterloo. Good middle ground. Walk over the bridge to the finish, easy transport to Greenwich.
• Canary Wharf. Easy DLR to Greenwich for the start. Loud crowd support in your local area. Often cheaper than central.
• Zone 2 and 3 budget option. Stratford, Bermondsey, or anywhere on the Jubilee line will be cheaper and still well connected.

Travel and arrival tips

Get to the expo at ExCeL London on Friday if you can. ExCeL is on the DLR (Custom House or Prince Regent stops), and the queues on Saturday afternoon can be brutal. The expo runs Wednesday through Saturday in the week before the race, and you must collect your bib in person.

On race morning, the DLR and Southeastern trains run extra services to the three start areas. Bring your bib and follow the colour-coded signs at the station. Allow more time than you think, because thousands of runners are doing the same journey at the same time.

After the finish at The Mall, you will be funneled through the kit collection area on Horse Guards Parade. Hot tip: agree a specific meeting point with family or friends well away from the finish funnel. Try a particular pub or a particular underground station entrance, because mobile signal is unreliable with that many people in one place.

Why Edge for marathon training

Edge is the UK's adaptive marathon training app, used by more than 17,000 members. Here is exactly what it does for a London build:

• Adaptive starting plan. Your 16-week plan is built around your real current fitness when you start, not a generic template.
• Flexi Swap. Life happens. Move sessions around the week when you need to.
• Edge AI. Get 30 second answers to your questions when you ask, and speak directly to coaches when you need a human.
• Strength and mobility built in. Targeted sessions for runners are part of the plan from week one, with coach video demos for every exercise.
• Progress tracking. See your weekly mileage, long run progression, and pace trends in one place.
• Direct sync. Your runs flow in from Strava, Garmin, Apple Watch and Coros automatically.
• Free 7-day trial. Try it before you commit. £19.99 monthly or £119.99 annual.

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