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Marathon de la Loire 2023, course map and altimetry

Marathon de la Loire 2023: route, altimetry, gpx

Note: "Marathon de la Loire 2023" is NOT organized by goandrace.com

Marathon de la Loire 2023 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Marathon de la Loire 2023" in Saumur (Sunday, May 14, 2023). Explore the route!

Do you want to fly over the path with a Google Earth 3D video? Click on the following link: Marathon de la Loire 2023, fly over the path (3D video).

GPS track - .gpx file download

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. For instructions on how to upload the GPX file onto your Garmin watch click here.

 .gpx file download

NB: it is possible that the length calculated from the gpx file is greater than that of the race, with an error typically of 1-2%, so for example a half-marathon could be 2-300 meters longer.

Click the following link to visit the Marathon de la Loire 2023 event page.

Marathon de la Loire 2023: route altimetric information


Marathon de la Loire 2023: GNR-GAP index (v 1.0, experimental, see more)

Marathon de la Loire 2023: interactive route

You can set the km (or mile) markers and you can select different types of layers (Satellite or Openstreetmap).

Marathon de la Loire 2023: altimetry graph

Marathon de la Loire 2023: slope graph

Marathon de la Loire 2023: percentage distribution of slope

Marathon de la Loire 2023: 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 31 28 -3 -0.3% 28 31 1 5
KM 1-2 28 31 +3 +0.3% 28 31 3 0
KM 2-3 31 29 -2 -0.2% 27 32 1 3
KM 3-4 29 31 +2 +0.2% 29 33 5 2
KM 4-5 31 30 -2 -0.2% 30 33 0 2
KM 5-6 30 27 -2 -0.2% 27 30 1 3
KM 6-7 27 27 0 0% 27 29 2 2
KM 7-8 27 26 -1 -0.1% 26 27 2 3
KM 8-9 26 29 +3 +0.3% 25 29 3 0
KM 9-10 29 33 +4 +0.4% 29 31 4 0
KM 10-11 33 32 -1 -0.1% 32 35 3 4
KM 11-12 32 30 -1 -0.1% 28 32 3 4
KM 12-13 30 34 +3 +0.3% 31 32 3 0
KM 13-14 34 32 -2 -0.2% 29 35 8 9
KM 14-15 32 28 -4 -0.4% 29 36 4 8
KM 15-16 28 32 +4 +0.4% 28 32 4 1
KM 16-17 32 29 -3 -0.3% 30 33 1 4
KM 17-18 29 29 0 0% 28 29 1 1
KM 18-19 29 27 -2 -0.2% 27 31 2 4
KM 19-20 27 29 +2 +0.2% 27 30 2 1
KM 20-21 29 29 0 0% 28 29 1 1
KM 21-22 29 24 -5 -0.5% 28 34 2 6
KM 22-23 24 26 +2 +0.2% 20 28 9 7
KM 23-24 26 26 0 0% 25 27 2 2
KM 24-25 26 27 0 0% 24 27 3 3
KM 25-26 27 29 +2 +0.2% 27 28 2 0
KM 26-27 29 27 -2 -0.2% 27 29 1 3
KM 27-28 27 28 0 0% 26 28 2 1
KM 28-29 28 29 +1 +0.1% 28 29 1 0
KM 29-30 29 26 -3 -0.3% 25 29 1 4
KM 30-31 26 28 +2 +0.2% 26 29 3 1
KM 31-32 28 28 0 0% 28 29 1 1
KM 32-33 28 28 0 0% 29 29 1 1
KM 33-34 28 27 -1 -0.1% 27 29 1 2
KM 34-35 27 27 0 0% 27 30 3 3
KM 35-36 27 30 +3 +0.3% 27 30 3 1
KM 36-37 30 30 0 0% 28 31 2 1
KM 37-38 30 31 +1 +0.1% 29 31 3 2
KM 38-39 31 30 -1 -0.1% 29 32 2 3
KM 39-40 30 30 0 0% 23 32 10 10
KM 40-41 30 31 +1 +0.1% 28 34 6 5
KM 41-42 31 33 +3 +0.3% 23 36 16 13
KM 42-42.20 33 31 -2 -0.2% 31 32 0 6

GNR-GAP index - Go&Race Algorithm Estimate

HEADS UP! Negligible elevation changes. Consider this a flat course.




Notes on the calculation of the length of the route, on the altimetry and on the slope

Note 1: the length of the route is calculated using the geographic coordinates of the points that compose it, thanks to a specific formula. This value may differ slightly from the official length declared by the organizers of the race, which is valid in case of discrepancies.
Note 2: the altimetry may not correspond exactly to the real values. For routes obtained via Google API, it is possible that the altitude is that of the terrain, without considering the presence of any tunnels or viaducts. If, however, the route was obtained from GPS tracking (for example with sports watches), the error is arbitrary and may depend both on the GPS coverage at the time it was recorded and on the performance of the device used.
Note 3: the percentage slope is found by calculating considering sections of at least 50 meters and is subsequently subjected to a "smoothing" process to reduce the possibility of artifacts and obtain a more realistic trend. For classification purposes, roads with gradients between -3% and +3% are considered flat, those with gradients between +3% and +7% are uphill, and those with gradients greater than +7% are considered steep. The same classification applies to descents. This classification is to be considered arbitrary and is a choice of goandrace.com.