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2023 TCS London Marathon, course map and altimetry.

2023 TCS London Marathon: map course, altimetry, gpx

Note: "2023 TCS London Marathon" is NOT organized by goandrace.com

On this page is shown the 42.195 km (26.224 mi) course map of the event "2023 TCS London Marathon" in London (Sunday, April 23, 2023). Explore the route!
Set on the map the km (or mile) markers. If you want, start an animation by clicking on the button 'Animate'. On the map you can also select different types of layers (Google Map and Open Street Map).

Do you want to fly over the path over the path with a Google Earth 3D animation? Click on the following link:
2023 TCS London Marathon: fly over the path (3D animation)

2023 TCS London Marathon event page

Download the gps race path by clicking here. You can send the .gpx file to your Garmin watch or other compatible device and follow the path.

Unit and marker distance

  Click to start marker animation along the route.

Note 1: Note 1: the path length, here calculated using Google Map, may be different from that declared by the race organizers. Accept as true the latter.
Note 2: the elevation and slope are estimated again using Google and may differ from the real ones. Pay attention to any paths with tunnels or viaducts, because the altitude calculated by Google is not that of the road, but rather the land!
Note 3: the slope is found by calculating the change in altitude of at least 150 m (492 ft) long sections. Level roads: slopes between -3% and +3%. Uphill roads: slopes between +3% and +7%. Steep hill upwards: slopes greater than +7%. Similar classification for descents.


Km by km route altimetry analysis

Lap Start Alt. End Alt. Diff. Alt. Aver. Slope Min Alt. Max Alt. Tot Climb Tot Descent
KM 0-1 43 39 -4 -0.4% 39 43 1 4
KM 1-2 39 47 +8 +0.8% 41 44 8 0
KM 2-3 47 42 -5 -0.5% 41 47 0 5
KM 3-4 42 25 -17 -1.7% 30 43 1 18
KM 4-5 25 22 -3 -0.3% 23 37 12 15
KM 5-6 22 12 -10 -1.0% 9 19 2 12
KM 6-7 12 4 -7 -0.7% 5 11 3 10
KM 7-8 4 4 0 0% 3 4 3 4
KM 8-9 4 7 +3 +0.3% 3 7 3 1
KM 9-10 7 6 -1 -0.1% 6 7 0 1
KM 10-11 6 3 -3 -0.3% 3 6 1 3
KM 11-12 3 4 0 0% 4 8 2 2
KM 12-13 4 6 +3 +0.3% 1 8 4 2
KM 13-14 6 5 -1 -0.1% 3 6 3 5
KM 14-15 5 3 -2 -0.2% -0 6 2 4
KM 15-16 3 0 -3 -0.3% 0 5 1 4
KM 16-17 0 10 +10 +1.0% 0 11 12 3
KM 17-18 10 9 -1 -0.1% 9 12 3 3
KM 18-19 9 10 +1 +0.1% 10 10 1 0
KM 19-20 10 8 -2 -0.2% 8 10 0 2
KM 20-21 8 4 -4 -0.4% 3 7 2 6
KM 21-22 4 3 -1 -0.1% 3 10 4 5
KM 22-23 3 3 0 0% 1 5 3 3
KM 23-24 3 4 +1 +0.1% 1 7 7 6
KM 24-25 4 6 +2 +0.2% 5 6 3 1
KM 25-26 6 18 +11 +1.1% 4 18 15 3
KM 26-27 18 4 -13 -1.3% 4 19 0 14
KM 27-28 4 6 +2 +0.2% 3 6 5 3
KM 28-29 6 10 +4 +0.4% 6 9 4 0
KM 29-30 10 17 +7 +0.7% 7 17 9 2
KM 30-31 17 17 0 0% 9 27 20 19
KM 31-32 17 0 -17 -1.7% 0 17 0 17
KM 32-33 0 2 +2 +0.2% 0 2 2 0
KM 33-34 2 0 -2 -0.2% 0 1 0 2
KM 34-35 0 4 +4 +0.4% 0 5 5 1
KM 35-36 4 4 0 0% 4 4 0 0
KM 36-37 4 6 +2 +0.2% 5 7 2 0
KM 37-38 6 6 0 0% 6 6 0 0
KM 38-39 6 5 -1 -0.1% 5 6 0 1
KM 39-40 5 5 0 0% 6 6 1 0
KM 40-41 5 5 0 0% 4 5 2 2
KM 41-42 5 6 +1 +0.1% 6 6 1 0
KM 42-42.20 6 6 0 0% 6 6 0 0