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Prague International Marathon 2023, course map and altimetry

Prague International Marathon 2023: route, altimetry, gpx

Note: "Prague International Marathon 2023" is NOT organized by goandrace.com

Prague International Marathon 2023 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Prague International Marathon 2023" in Prague (Sunday, May 7, 2023). Explore the route!

Do you want to fly over the path with a Google Earth 3D video? Click on the following link: Prague International Marathon 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 Prague International Marathon 2023 event page.

Prague International Marathon 2023: route altimetric information


Prague International Marathon 2023: GNR-GAP index (v 1.0, experimental, see more)

Prague International Marathon 2023: interactive route

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

Prague International Marathon 2023: altimetry graph

Prague International Marathon 2023: slope graph

Prague International Marathon 2023: percentage distribution of slope

Prague International Marathon 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 0-1 191 185 -6 -0.6% 185 198 8 14
KM 1-2 185 185 0 0% 185 197 11 11
KM 2-3 185 190 +5 +0.5% 181 191 10 5
KM 3-4 190 194 +4 +0.4% 187 197 13 9
KM 4-5 194 196 +2 +0.2% 191 198 6 4
KM 5-6 196 192 -4 -0.4% 193 198 2 6
KM 6-7 192 195 +3 +0.3% 192 196 4 1
KM 7-8 195 194 -1 -0.1% 194 195 1 2
KM 8-9 194 196 +1 +0.1% 194 196 2 0
KM 9-10 196 194 -1 -0.1% 195 195 0 1
KM 10-11 194 191 -3 -0.3% 193 193 0 3
KM 11-12 191 196 +4 +0.4% 189 196 6 2
KM 12-13 196 193 -3 -0.3% 192 196 1 4
KM 13-14 193 193 0 0% 187 193 6 6
KM 14-15 193 194 +2 +0.2% 192 195 3 1
KM 15-16 194 195 0 0% 194 196 2 1
KM 16-17 195 194 -1 -0.1% 195 195 0 1
KM 17-18 194 193 -1 -0.1% 193 195 1 3
KM 18-19 193 194 +1 +0.1% 192 193 1 0
KM 19-20 194 191 -3 -0.3% 193 194 1 4
KM 20-21 191 190 0 0% 187 193 6 6
KM 21-22 190 189 -1 -0.1% 192 192 2 3
KM 22-23 189 191 +2 +0.2% 189 191 2 1
KM 23-24 191 189 -2 -0.2% 185 191 4 6
KM 24-25 189 192 +3 +0.3% 190 196 3 0
KM 25-26 192 205 +12 +1.2% 193 205 13 0
KM 26-27 205 197 -7 -0.7% 197 200 0 7
KM 27-28 197 193 -4 -0.4% 195 197 0 4
KM 28-29 193 186 -7 -0.7% 187 190 0 7
KM 29-30 186 186 0 0% 185 185 1 1
KM 30-31 186 188 +2 +0.2% 186 188 2 0
KM 31-32 188 188 0 0% 187 188 1 1
KM 32-33 188 189 +1 +0.1% 186 187 3 2
KM 33-34 189 186 -3 -0.3% 186 191 0 3
KM 34-35 186 188 +2 +0.2% 186 189 3 1
KM 35-36 188 186 -3 -0.3% 185 187 1 3
KM 36-37 186 189 +4 +0.4% 186 189 5 1
KM 37-38 189 187 -2 -0.2% 184 190 4 6
KM 38-39 187 189 +2 +0.2% 189 189 2 0
KM 39-40 189 190 +1 +0.1% 189 190 1 0
KM 40-41 190 190 0 0% 190 190 0 0
KM 41-42 190 190 0 0% 190 190 0 1
KM 42-42.20 190 190 0 0% 190 190 0 0

GNR-GAP index - Go&Race Algorithm Estimate

Based on the elevation profile analysis, running on this course is estimated to result in a pace that is 0.7% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 40.9 km course, corresponding to a finish time of 3h24'25", is estimated to complete this course in 3h25'45". The recalculated average pace (GAP) improves to 5'02"/km (8'06"/mi), making it 0'02"/km (0'03"/mi) slower.


The following graph illustrates the Pace Adjustment (PA) factor applied to the pace along the course. The horizontal red line represents a PA of 1, meaning no pace adjustment. Above the line, the pace is slower; below the line, it is faster. The table below also provides estimates for other pace ranges.



Predict your race or analyze your performance!

This following table shows simulations for paces between 3 and 8'/km.


RACE PREDICTION
To estimate a possible race time, use the "Pace" or "Time without slopes" column, which are valid for a flat course.
For example, if you think you can cover this distance on a flat course at a pace of 4'40"/km (or 7'31"/mi), i.e. in a time of 3h10'47", the estimate is to complete this course in 3h12'02", corresponding to a pace of 4'42"/km (or 7'34"/mi).

PERFORMANCE ANALYSIS
If you have run this race, use the table to estimate the equivalent time on a flat course. Check the "GAP" column and find the value closest to your pace, or compare the "Time with slopes" column with your time: on the same row you will find the pace and the equivalent time on a flat course in the "Pace" and "Time without slopes" columns.
For example, a time of 3h05'10" (pace of 4'32"/km or 7'17"/mi) corresponds to a time of 3h03'58" on a flat course (pace of 4'30"/km or 7'15"/mi).

Pace (min/km) Pace (min/mile) Time without slopes (hh:mm:ss) Time with slopes (hh:mm:ss) GAP (min/km) Δ Pace (min/km) GAP (min/mile) Δ Pace (min/mile)
3'00"4'50"2h02'39"2h03'27"3'01"0'01"4'52"0'02"
3'10"5'06"2h09'27"2h10'18"3'11"0'01"5'08"0'02"
3'20"5'22"2h16'16"2h17'10"3'21"0'01"5'24"0'02"
3'30"5'38"2h23'05"2h24'01"3'31"0'01"5'40"0'02"
3'40"5'54"2h29'54"2h30'53"3'41"0'01"5'56"0'02"
3'50"6'10"2h36'43"2h37'44"3'52"0'02"6'13"0'02"
4'00"6'26"2h43'32"2h44'36"4'02"0'02"6'29"0'03"
4'10"6'42"2h50'20"2h51'27"4'12"0'02"6'45"0'03"
4'20"6'58"2h57'09"2h58'19"4'22"0'02"7'01"0'03"
4'30"7'15"3h03'58"3h05'10"4'32"0'02"7'17"0'03"
4'40"7'31"3h10'47"3h12'02"4'42"0'02"7'34"0'03"
4'50"7'47"3h17'36"3h18'53"4'52"0'02"7'50"0'03"
5'00"8'03"3h24'25"3h25'45"5'02"0'02"8'06"0'03"
5'10"8'19"3h31'14"3h32'36"5'12"0'02"8'22"0'03"
5'20"8'35"3h38'02"3h39'28"5'22"0'02"8'38"0'03"
5'30"8'51"3h44'51"3h46'19"5'32"0'02"8'55"0'03"
5'40"9'07"3h51'40"3h53'11"5'42"0'02"9'11"0'04"
5'50"9'23"3h58'29"4h00'02"5'52"0'02"9'27"0'04"
6'00"9'39"4h05'18"4h06'54"6'02"0'02"9'43"0'04"
6'10"9'55"4h12'07"4h13'45"6'12"0'02"9'59"0'04"
6'20"10'12"4h18'55"4h20'37"6'22"0'02"10'16"0'04"
6'30"10'28"4h25'44"4h27'28"6'33"0'03"10'32"0'04"
6'40"10'44"4h32'33"4h34'20"6'43"0'03"10'48"0'04"
6'50"10'60"4h39'22"4h41'12"6'53"0'03"11'04"0'04"
7'00"11'16"4h46'11"4h48'03"7'03"0'03"11'20"0'04"
7'10"11'32"4h53'00"4h54'55"7'13"0'03"11'37"0'05"
7'20"11'48"4h59'48"5h01'46"7'23"0'03"11'53"0'05"
7'30"12'04"5h06'37"5h08'38"7'33"0'03"12'09"0'05"
7'40"12'20"5h13'26"5h15'29"7'43"0'03"12'25"0'05"
7'50"12'36"5h20'15"5h22'21"7'53"0'03"12'41"0'05"
8'00"12'52"5h27'04"5h29'12"8'03"0'03"12'58"0'05"

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.