Plan Your Marathon Route
On Any Map On Earth.
A free, browser-based marathon route planner. Trace a running route on real-world maps and get the exact distance, min/km pace, projected finish times, and automatic kilometre markers — then export GPX straight to your watch. No download, no sign-up required.
Measure the course before you run a single step.
RaceTrackDesigner started as a race circuit design tool — but pick the Marathon class and it becomes a full running route planner. Drop waypoints on a live map of anywhere in the world, drag them until the course is right, and the planner draws a smooth route through them while measuring every metre. The moment the route takes shape you get its exact distance, your average pace in min/km, an estimated run time, and a marker pinned to the map at every whole kilometre.
Plan a classic point-to-point marathon course from START to FINISH, or close the loop for a city-circuit style route — the planner then also tells you how many laps make the full 42.195 km. Either way, every route shows a projected marathon time, so comparing two candidate courses is as simple as drawing them both.
When the route is done, take it with you: export a GPX file for your GPS watch, KML for Google Earth, or a shareable short link that lets training partners open — and keep editing — the exact same course.
Everything a route planner needs — nothing you don't.
Kilometre Markers
A marker appears on the map at every whole kilometre along your route, automatically. Plan aid stations, position pacers, and see at a glance exactly where 10 K, halfway, and the 30 K wall land on your course.
Pace & Projected Times
Timing switches to a runner's language: average pace in min/km, an estimated run time for the route, and a projected full-marathon time extrapolated from your course — whatever its length.
Loops & Point-to-Point
Draw an A-to-B course in the classic big-city marathon style, or close the loop for a circuit route. Loops also show how many laps of your route add up to the full 42.2 km.
Sharp-Turn Detection
The planner flags genuinely sharp turns — the street corners that break rhythm and cost seconds — and counts them alongside your longest uninterrupted straight, so you can smooth the course before race day.
Real Maps & Satellite
Search any city, address, or park, jump to your current location, and toggle live satellite imagery to trace the actual roads, waterfronts, and trails you'll be running on.
Export & Share
Export GPX for GPS watches and running apps, KML for Google Earth, or XML waypoint data. Share a short link anyone can keep editing, or render the route as a PNG in ten visual styles.
From blank map to marathon course in minutes.
Choose the runner
Open the designer and pick the human-powered side, then the Marathon class. The whole app switches to a runner's view: pace stats, run times, and kilometre markers instead of lap times.
Pick your city
Search for any place on Earth or start right where you are with your device's location. The dark map keeps your route legible; satellite view shows the real streets underneath.
Trace the course
Click to place waypoints and drag them to refine. The distance readout updates live, sharp turns are detected as you go, and a 30-step undo history means nothing is ever ruined.
Read it — and take it with you
Check the distance, pace, and projected times, see the km markers fall into place, then export GPX for your watch or share a short link with your running club.
A route measured on a real map beats a guess every time.
Most running routes are planned by feel — a loop that seems about right, an out-and-back that's hopefully long enough. A map-based marathon route planner removes the guesswork: the course you draw is measured metre by metre on real geography, so a 42.2 km route is actually 42.2 km, and a 16 km long run doesn't quietly turn into 19.
The details matter too. Kilometre markers show where your splits will fall before you ever lace up. The sharp-turn count reveals whether a course flows or constantly breaks your rhythm. And because every route gets a projected time from the same elite-runner model — about 21 km/h flat out, slowing only for genuinely tight corners — two candidate courses can be compared honestly: same runner, different roads. Treat those projections as a benchmark between routes rather than a prediction of your own finish time.
It works at every distance. Plan a half marathon route, a 10 K, or a weekly training loop exactly the same way — the markers, pace stats, and GPX export don't care how far you're going. And if you're building a full event, the same tool designs the rest of the race weekend: see the triathlon course designer for swim–bike–run planning, or go back to creating a race track for the motorsport side.
Marathon route planning, answered.
Is the marathon route planner free?
Yes. RaceTrackDesigner runs entirely in your browser with nothing to install and nothing to pay. An account is optional and only needed if you want to save routes to come back to later.
Can I plan a half marathon, 10K, or training route?
Yes. The route can be any length — the distance readout updates live as you place waypoints, and kilometre markers appear at every whole kilometre regardless of how long the course is. The marathon-specific stats simply project from whatever you draw: a loop shows how many laps make 42.2 km, and every route shows an estimated full-marathon time extrapolated from its pace.
How is the projected time calculated?
The planner simulates an elite distance runner — roughly 21 km/h flat out — who slows for genuinely sharp turns. Treat the projected times as a fast benchmark and a fair way to compare candidate routes against each other, rather than a prediction of your personal finish time.
Can I get the route onto my watch?
Yes. Export the route as a GPX file for GPS watches and running apps, as KML for Google Earth, or as XML for raw waypoint data. You can also render the route as a high-resolution PNG image in ten visual styles.
What are the kilometre markers for?
A marker is placed automatically at every whole kilometre along the course. Use them to plan aid stations, position pacers, break the route into splits, or simply see at a glance where 10 K, halfway, and 30 K land on the map.
Do I need an account?
No. Everything works without signing in. An optional free account adds saved routes, and shareable short links work either way — anyone who opens your link can keep editing the route.