Here's the Full Runner's Guide for the London Marathon 2025
The London Marathon is one of the most iconic marathon races in the world, drawing over 50,000 runners and hundreds of thousands of spectators each year. Whether you’re a first-timer chasing a lifelong goal or a seasoned marathoner aiming for a personal best, this event offers an unforgettable experience—from the historic landmarks en-route, to its electric crowd support, to its fast, flat course designed for triumph.
But running 26.2 miles / 42.195 kilometers through the heart of London takes more than just determination. Proper preparation—from securing your entry and training effectively to navigating race-day logistics—can make all the difference between a grueling struggle and the race of your life.
In this complete guide, we’ll answer all your key questions, covering:
- How to get a place in the London Marathon
- The best training strategies for success
- What to expect on the legendary course
- Essential race-day tips for a smooth experience
- How to recover and celebrate your achievement
Whether you're lacing up for your first marathon or returning for another shot at glory, this London Marathon guide will help you plan, prepare, and perform at your best on the big day. Let’s get started!
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1. When is the 2025 London Marathon?
The 2025 London Marathon will take to the English capital again on Sunday, 27 April!
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2. What is the London Marathon, and Why Should I Run It?
The London Marathon is one of the six World Marathon Majors (Tokyo, Boston, NYC, Berlin, Sydney, Chicago, and London) and one of the most celebrated long-distance races in the world.
Founded in 1981 by Olympian Chris Brasher and athlete John Disley, the event was inspired by the vibrant atmosphere of the New York City Marathon. What began with just 6,255 finishers has grown into a global phenomenon, attracting elite athletes, charity runners, and everyday heroes - all united by the challenge of conquering 26.2 miles through the heart of London.
So why should you run it? The London Marathon isn't just a race - it's a way to experience London in a unique, one-of-a-kind way.
The course winds past iconic landmarks, including Tower Bridge, Canary Wharf, and Buckingham Palace, with crowds that carry you every step of the way.
It's also the world's largest one-day fundraising event, with runners raising over £1 billion for charity since its inception.
Whether you're chasing a personal best on its fast, flat route or simply want to be part of something extraordinary, the London Marathon offers a mix of elite competition, carnival-like energy, and life-changing achievement - making it a bucket-list race for runners of all levels.
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3. How Do I Enter the London Marathon?
Getting a place in the London Marathon is competitive, but there are several entry options available. Here are the main ways to secure your spot:
Ballot Entry (Public Lottery)
The most common way to enter is through the public ballot, which opens shortly after each year's race (usually April/May). Since there are far more applicants than places available, the ballot is completely random with a low success rate (typically 5-10%). If you're unsuccessful multiple years in a row, you may get priority in future ballots.
Charity Places
Many runners get in through charity places. Official race charities offer guaranteed entries in exchange for fundraising commitments (usually £2,000 or more). This is a great option if you're willing to support a good cause, but you'll need to apply early as these places get taken quickly.
Good For Age (GFA) Entry
If you're a fast runner, you might qualify for Good For Age entry. This requires meeting strict time standards in another marathon based on your age and gender. GFA places are limited and competitive - check the official London Marathon website for current qualifying times.
Championship & Club Entries
Elite runners and members of UK running clubs may apply through Championship Entry (for sub-elite athletes) or Club Entry (allocated to registered running clubs). These require proof of recent race performances.
International Tour Operators
For runners coming from outside the UK, official international tour operators sell guaranteed entries, often as part of travel packages that include flights, hotels and race support. These can be expensive but are a reliable option for overseas participants.
Deferred & Deferred Charity Entries
If you deferred your place from a previous year (due to injury or other approved reasons), you'll get automatic entry for the next race. Some charities also allow deferrals of their places.
Important tip: No matter which entry method you choose, apply as early as possible - some options like charity entries close months before race day. Always check the official TCS London Marathon website for the most up-to-date deadlines and requirements.
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4. When and Where Does the London Marathon Take Place?
The London Marathon traditionally takes place in April each year, typically on the last Sunday of the month.
The 2025 event will be held on Sunday, April 27th. The race starts in multiple waves beginning at approximately 8:30am for elite wheelchair athletes, with the final wave starting around 10:40am.
The marathon course begins at three separate start points near Blackheath in southeast London:
- Blue Start for championship and fast runners, best accessed via Blackheath Station
- Green Start for ballot runners, best accessed via Maze Hill Station
- Red Start for charity runners, best accessed via Greenwich Station.
All routes merge after about 3 miles near Woolwich. The 26.2-mile course then winds through some of London's most iconic areas before finishing on The Mall near Buckingham Palace.
Key landmarks along the route include:
- Cutty Sark at mile 6 (one of the most spectacular crowd spots)
- Tower Bridge at mile 12 (the halfway point with incredible atmosphere)
- Canary Wharf between miles 14-19 (with its impressive skyscrapers)
- Embankment along the Thames from mile 23
- Big Ben and Parliament near mile 25
- The final stretch down The Mall to the finish line
The course is known for being relatively flat and fast, with only minor inclines, making it ideal for both first-time marathoners and those looking to achieve personal bests. The incredible crowd support throughout the entire route creates an unforgettable experience, with some of the loudest cheers at Tower Bridge and along Embankment.
All runners finish in front of Buckingham Palace on The Mall, where they receive their well-earned medal and can celebrate their achievement. The finish area is well-organized with refreshments, baggage reclaim, and meeting points for friends and family.
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5. What’s the London Marathon Course Like?
The London Marathon course is world-famous for being both fast and spectacular, combining a flat, PB-friendly route with an incredible tour of London's most iconic landmarks. Here's what you can expect:
Course Layout & Elevation
The 26.2-mile route is mostly flat, with just a few gentle inclines (the largest being a short rise around mile 21 near Tower Bridge).
The total elevation gain is only about 125 feet (38m), making it one of the flattest major marathons. The course starts slightly elevated in Blackheath before descending in the early miles, then remains largely level along the Thames.
Iconic Sections Breakdown
Miles 1-6: The Starting Waves & Greenwich
- Runners begin in one of three starts (Blue, Green, or Red) that merge by mile 3
- Pass through charming neighborhoods like Woolwich and Charlton
- The first major landmark: the stunning Cutty Sark at mile 6 (one of the loudest crowd spots)
Miles 7-12: Towards Tower Bridge
- Run through Bermondsey and Rotherhithe with growing crowd support
- Approach the halfway point at Tower Bridge (mile 12) - one of the most electrifying moments, with deafening cheers as you cross the Thames
Miles 13-21: The Docklands & Canary Wharf
- Loop through East London's modern skyscrapers in Canary Wharf (miles 14-19)
- Some mentally challenging stretches here as the crowds thin slightly
- Pass historic St. Katharine Docks before returning towards central London
Miles 22-26.2: The Final Push Along the Thames
- Run along the Embankment (mile 23-25) with Big Ben in sight
- Pass the Houses of Parliament at mile 25
- The unforgettable final stretch down The Mall to the finish, with Buckingham Palace as your backdrop
Why Runners Love This Course
The London Marathon is perfect for PBs. The flat route and incredible crowd energy help runners maintain pace. In addition, there are non-stop landmarks. You're never far from an iconic view or cheering section! Last, the world-class atmosphere make it a true one-of-a-kind event. The crowds are famously supportive throughout, especially at Tower Bridge and The Mall
Our Tips for Tackling the Course
- Don't go out too fast in the exciting early miles
- Use the loud crowds at Tower Bridge to fuel your second half
- Save some energy for the Embankment, where many runners hit "the wall"
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6. How Should I Train for the London Marathon?
Training properly is key to enjoying and succeeding in the London Marathon, whether you're a first-timer or an experienced runner. Here's what you need to know:
For beginners who are aiming to finish, rather than hit a PB.
Start training at least 16-20 weeks before race day if new to running. We recommend following a gradual plan that builds from 3-4 runs per week. Ideally, mix short runs with at least one long run per week. Begin with long runs of 6-8 miles, building up to 18-20 miles as your peak distance.
Recovery is just as important as your training: Include rest days and cross-training (swimming/cycling) to avoid overuse injuries. Last, don't forget to ractice your race-day nutrition during long runs.
For experienced runners aiming for a time goal.
A 12-16 week focused training block is typical for a marathon. Include speed work (intervals, tempo runs) 1-2 times per week. Mix shorter interval sessions (400 or 800 meters) with longer intervals (for example, 3 * 10 minutes at threshold).
Your long runs should reach 20-22 miles, with some at goal marathon pace. We also highly recommend hill training or hill repeats to build strength, despite the flat course. Taper properly in the final 2-3 weeks!
Key Training Tips For all Runners
- Increase weekly mileage by no more than 10% to avoid injury
- Do most runs at an easy, conversational pace (only 20% at higher intensity). These runs in your moderate heart rate zone help build up stamina.
- Practice running in the shoes and clothes you'll wear on race day
- Schedule a half marathon 4-6 weeks out as a fitness test
Moreover, to prevent injuries, we recommend cross-training. For example,
- Strength train 2x weekly (focus on glutes, core, hips)
- Never skip warm-ups or cooldowns
- Replace shoes every 300-500 miles
- Take rest days seriously - they're when your body adapts
To succeed on race day, also don't forget to:
- Practice your fueling strategy (gels, drinks) during long runs
- Stay hydrated daily, not just on run days
- Carb-load properly in the final 3 days before race day
The most common mistake is doing too much, too soon. Consistency over months beats heroic training weeks followed by injury. Listen to your body and adjust as needed!
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7. What Should I Wear and Bring on Race Day?
Race day preparation is crucial for marathon success. Here's your essential guide to gear, weather planning, and nutrition for the London Marathon:
Our Clothing Recommendations for the London Marathon
- Wear moisture-wicking, technical fabrics (never cotton)
- Choose well-broken-in running shoes with 100+ training miles
- Opt for seamless socks to prevent blisters
- Consider arm warmers or throwaway layers for April's variable weather
In terms of weather in late April, the average temperatures range from 8-15°C (46-59°F), from cold rain to sunshine. Check the forecast 3 days before and prepare accordingly. It's always good to bring a disposable rain poncho or old clothes to stay warm at the start.
Essential Items to Bring
- Race number (with safety pins attached)
- Timing chip (attached to shoes)
- Fully charged sports watch/phone
- Your preferred energy gels (6-8) and salt tablets
- Small vaseline or anti-chafing balm (best applied on the morning of the race)
- Hat/visor and sunglasses if sunny
Hydration Strategy
- Start hydrating 2-3 days before race day
- Drink 500ml water 2 hours before start
- Use the official water stations (every mile from mile 3)
- Alternate water and sports drinks for electrolytes
- Don't overdrink - aim for small, frequent sips to avoid having to use the bathroom!
A Simple Fueling Plan for the London Marathon
We recommend to a eat a familiar carb-based breakfast 3 hours before start, and to take the first gel around mile 5, then every 4-5 miles. Practice your fueling strategy during training, and carry some emergency cash for unexpected needs.
Last but not least, here are a few pro tips:
- Apply body glide to potential chafe areas
- Write your name on your shirt for extra crowd support
- Pack post-race warm clothes in your finish bag
- Bring flip flops for sore feet after finishing
Remember: Nothing new on race day! Every item and strategy should be tested during training. The London Marathon provides excellent support, but being self-sufficient with your preferred nutrition can make all the difference.
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8. Where Should I Stay and How Do I Get to the Start Line?
Planning your accommodation and travel logistics is just as important as your training for the London Marathon.
Here's what you need to know to ensure a smooth race morning:
Accommodation Tips
Book your hotel at least 6 months in advance (options fill quickly). Ideal locations are Greenwich, Blackheath, or central London near major transport links. Consider staying near the finish (Westminster area) for easy post-race access, and look for hotels with late checkout or baggage storage options for easier logistics.
We recommend avoiding staying too far from the start - morning transport will be busy!
Transport Options to the Start
- Tube/Trains: Southeastern trains and DLR serve the start areas (Blackheath, Greenwich, Maze Hill stations)
- Race Shuttles: Official buses run from central London locations
- Walking Possible if staying in Greenwich/Blackheath (up to 30 min walk)
- Avoid driving: Road closures make parking near the start impossible
Race Morning Logistics
- Arrive at your start area at least 1.5 hours before your wave time
- Bag drop usually closes 45 minutes before each wave start
- Use the toilet as soon as you arrive - lines get long
- Bring a disposable layer to stay warm while waiting
- Have your race number pinned on before arriving
Key Timing Considerations For a Stress-Free Start
- First trains start around 5:30am on race day
- Allow extra time for crowded transport
- Different start areas have different transport options - check your specific start
Last, a few more tips. First, download the TFL Go app for real-time transport updates. It's also good to have a backup transport plan in case of delays. Do make sure to pre-load your Oyster card or contactless payment method. For maximum convenient, consider booking a taxi the night before if staying far away.
Remember: The earlier you arrive, the less stressed you'll be. Better to wait at the start than rush at the last minute. The London Marathon organization provides excellent signage and volunteers to guide you once you're near the start areas.
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9. What Happens on Race Day?
Race day at the London Marathon is an incredibly well-organized but busy experience.
Here's exactly what you can expect from morning to finish line. The day begins early, with most runners needing to arrive at the start area by 7:30-8:30am depending on their wave.
Three separate start points (Blue, Green, and Red) operate simultaneously near Blackheath, each with their own baggage trucks that close 45 minutes before each wave's start time. Make sure to attach your numbered baggage label to your kit bag in advance.
The starting waves are carefully staggered throughout the morning, beginning with wheelchair races at 8:30am, elite women at 8:40am, elite men and mass start at 9:00am, followed by subsequent waves every 15-30 minutes until the final wave around 10:40am.
Each wave gets called forward to the start pens about 20 minutes before their official start time. There are plenty of portable toilets in the start areas, but lines grow long, so go early.
Along the course, you'll find support stations every mile starting from mile 3, alternating between water and Lucozade Sport stations (Miles 7, 15, 21 and 23). Energy gels are distributed at specific points (typically around miles 11 and 18).
Medical stations with first aid and physio support appear every mile from mile 3 onwards.
The crowd support is phenomenal throughout, with particularly loud sections at Cutty Sark (mile 6), Tower Bridge (mile 12), Canary Wharf (mile 19), and along the Embankment (miles 23-25).
For spectators, the best viewing spots include these major landmarks, but they get crowded.
Smart spectators plan multiple viewing points along the course using the Tube to move between locations. The official London Marathon app provides live tracking so supporters can follow your progress. The finish area on The Mall is extremely well organized, with clear signage for medal collection, baggage reclaim, and meeting points.
After collecting your medal and finisher t-shirt, you'll find food, drinks, and medical support available. The atmosphere at the finish is electric, with many runners meeting friends and family in the designated meeting areas marked by letters of the alphabet.
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10. How Can Friends and Family Support Me?
Having supporters along the course can give you an incredible boost during the London Marathon. Here's how your friends and family can make the most of their spectator experience while helping you through your 26.2-mile journey.
The best viewing spots combine good visibility with easy access via public transport. Tower Bridge (around mile 12) offers one of the most iconic backdrops and electrifying atmospheres, though it gets extremely crowded.
For seeing runners twice, Canary Wharf (miles 19-21) allows spectators to move between different points as you loop through the area.
The Embankment (miles 23-25) is perfect for the crucial final miles when you'll need encouragement most. The finish area on The Mall provides the ultimate celebration spot, though security restrictions limit access.
Smart spectators use the official London Marathon tracking app to monitor your progress in real time. By entering your bib number, they can receive live updates on your location and predicted finish time. This helps them time their movements between viewing points.
The app also shows your split times, so they'll know if you're ahead or behind schedule. Many spectators create signs with the runner's name - hearing personal cheers in the crowd can be incredibly motivating when fatigue sets in.
Experienced marathon supporters plan their day carefully.
They arrive early at viewing spots to secure good positions, especially at popular locations like Cutty Sark. Savvy spectators bring snacks, water, and layers - they might be waiting for hours between sightings. Some prepare small care packages with extra gels or encouraging notes to hand off at predetermined spots (though practice this in advance as botched handoffs can cost time).
Most importantly, they agree on specific meeting points after the finish, as phone service can be unreliable with so many people concentrated in one area.
The most valuable support often comes from simple presence. Knowing your loved ones are out there waiting can pull you through tough moments!
Even if they can't make it to London, virtual support through messages or tracking your progress online still makes a difference. Many runners report that remembering their supporters' faces at key points helped them push through when their energy flagged.
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11. What Should I Do After the Marathon?
Crossing the finish line is an incredible achievement, but what you do in those first hours and days after the London Marathon makes a big difference in your recovery.
Here's our suggested post-race guide to make the most of your accomplishment while taking care of your body.
Immediately after finishing, keep moving slowly through the finish area to prevent stiffness. Volunteers will guide you through medal collection (a stunning London Marathon medal you've earned!), then to the finisher's pack area where you'll receive your goody bag with snacks, water, and the coveted finisher t-shirt.
Collect your baggage from the numbered trucks if you checked a bag - the system is very efficient but may have short queues. The meeting area on Horse Guards Road organizes reunion spots alphabetically by surname, making it easier for family to find you.
For recovery, start with small sips of water or sports drink rather than gulping large amounts. The provided snacks will help replenish energy, but try to eat a proper meal within 2 hours.
Walking gently for 10-15 minutes after finishing helps flush out lactic acid, followed by elevating your legs if possible. In the first 24 hours, focus on hydration, light stretching, and wearing compression gear to reduce swelling. The next day, an easy walk or gentle swim can aid recovery, but avoid running for at least a week.
Celebrate your achievement - you've earned it (and our London Marathon poster is a great way for a lasting memento)! Many runners head to pubs near the finish (The Clarence on Whitehall is a popular spot) or special post-race parties. Official marathon partners often host finisher events with food, drinks, and photo opportunities. Don't forget to collect your official finish time certificate online later that day through the marathon website.
In the week following the race, prioritize rest while staying gently active.
Expect some muscle soreness for 2-3 days (peaking at 48 hours post-race). Consider sports massage after 2-3 days to aid recovery, but avoid deep tissue work immediately after. Reflect on your achievement - many runners experience a post-race emotional drop, so plan something to look forward to in the following weeks!
Finally, decide what's next - whether that's signing up for another race, taking a break, or just enjoying your status as a London Marathon finisher. Your medal isn't just a piece of metal; it's proof you joined an elite group who've conquered one of the world's greatest marathons.
