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Jungfrau-Marathon 2023, course map and altimetry

Jungfrau-Marathon 2023: route, altimetry, gpx

Note: "Jungfrau-Marathon 2023" is NOT organized by goandrace.com

Jungfrau-Marathon 2023 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Jungfrau-Marathon 2023" in Interlaken (Sunday, September 24, 2023). Explore the route!

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

Jungfrau-Marathon 2023: route altimetric information


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

Jungfrau-Marathon 2023: interactive route

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

Jungfrau-Marathon 2023: altimetry graph

Jungfrau-Marathon 2023: slope graph

Jungfrau-Marathon 2023: percentage distribution of slope

Jungfrau-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 0-1 566 568 +2 +0.2% 566 570 3 1
KM 1-2 568 563 -5 -0.5% 563 568 0 5
KM 2-3 563 565 +2 +0.2% 563 564 2 0
KM 3-4 565 566 +1 +0.1% 566 567 2 1
KM 4-5 566 567 +1 +0.1% 567 568 2 1
KM 5-6 567 569 +2 +0.2% 567 569 2 0
KM 6-7 569 567 -2 -0.2% 565 570 1 3
KM 7-8 567 573 +6 +0.6% 567 573 6 0
KM 8-9 573 580 +7 +0.7% 574 580 7 0
KM 9-10 580 584 +4 +0.4% 579 583 4 0
KM 10-11 584 626 +42 +4.2% 584 625 42 0
KM 11-12 626 649 +23 +2.3% 626 649 27 4
KM 12-13 649 657 +8 +0.8% 649 667 18 10
KM 13-14 657 651 -6 -0.6% 638 656 12 18
KM 14-15 651 652 +1 +0.1% 645 653 10 9
KM 15-16 652 665 +13 +1.3% 652 664 13 0
KM 16-17 665 700 +35 +3.5% 665 699 35 0
KM 17-18 700 731 +31 +3.1% 700 732 32 1
KM 18-19 731 754 +23 +2.3% 732 754 23 0
KM 19-20 754 804 +50 +5.0% 754 803 50 0
KM 20-21 804 801 -3 -0.3% 799 813 10 13
KM 21-22 801 817 +16 +1.6% 801 817 16 0
KM 22-23 817 816 -1 -0.1% 811 817 5 6
KM 23-24 816 805 -11 -1.1% 806 817 0 11
KM 24-25 805 791 -14 -1.4% 791 804 0 14
KM 25-26 791 796 +5 +0.5% 784 795 11 6
KM 26-27 796 980 +183 +18.3% 801 975 183 0
KM 27-28 980 1165 +186 +18.6% 985 1163 186 0
KM 28-29 1165 1174 +9 +0.9% 1163 1181 19 10
KM 29-30 1174 1261 +87 +8.7% 1176 1257 87 0
KM 30-31 1261 1291 +30 +3.0% 1267 1301 36 6
KM 31-32 1291 1300 +9 +0.9% 1279 1304 24 15
KM 32-33 1300 1419 +119 +11.9% 1302 1414 119 0
KM 33-34 1419 1515 +96 +9.6% 1420 1515 96 0
KM 34-35 1515 1616 +101 +10.1% 1516 1614 101 0
KM 35-36 1616 1684 +68 +6.8% 1619 1684 68 0
KM 36-37 1684 1720 +36 +3.6% 1684 1717 36 0
KM 37-38 1720 1798 +77 +7.7% 1723 1794 77 0
KM 38-39 1798 1827 +29 +2.9% 1801 1858 56 27
KM 39-40 1827 1954 +127 +12.7% 1827 1950 129 2
KM 40-41 1954 2172 +218 +21.8% 1957 2149 218 0
KM 41-42 2172 2286 +114 +11.4% 2174 2285 132 18
KM 42-42.20 2286 2320 +34 +3.4% 2286 2320 110 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 47.9% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 42.2 km course, corresponding to a finish time of 3h30'58", is estimated to complete this course in 5h12'00". The recalculated average pace (GAP) improves to 7'24"/km (11'54"/mi), making it 2'24"/km (3'51"/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 3h16'54", the estimate is to complete this course in 4h51'12", corresponding to a pace of 6'54"/km (or 11'06"/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 4h40'48" (pace of 6'39"/km or 10'43"/mi) corresponds to a time of 3h09'52" 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"2h06'35"3h07'12"4'26"1'26"7'08"2'19"
3'05"4'58"2h10'06"3h12'24"4'34"1'29"7'20"2'23"
3'10"5'06"2h13'37"3h17'36"4'41"1'31"7'32"2'26"
3'15"5'14"2h17'08"3h22'48"4'48"1'33"7'44"2'30"
3'20"5'22"2h20'39"3h28'00"4'56"1'36"7'56"2'34"
3'25"5'30"2h24'10"3h33'12"5'03"1'38"8'08"2'38"
3'30"5'38"2h27'41"3h38'24"5'11"1'41"8'20"2'42"
3'35"5'46"2h31'12"3h43'36"5'18"1'43"8'32"2'46"
3'40"5'54"2h34'43"3h48'48"5'25"1'45"8'44"2'50"
3'45"6'02"2h38'14"3h54'00"5'33"1'48"8'56"2'53"
3'50"6'10"2h41'45"3h59'12"5'40"1'50"9'07"2'57"
3'55"6'18"2h45'16"4h04'24"5'48"1'53"9'19"3'01"
4'00"6'26"2h48'47"4h09'36"5'55"1'55"9'31"3'05"
4'05"6'34"2h52'18"4h14'48"6'02"1'57"9'43"3'09"
4'10"6'42"2h55'49"4h20'00"6'10"2'00"9'55"3'13"
4'15"6'50"2h59'20"4h25'12"6'17"2'02"10'07"3'17"
4'20"6'58"3h02'50"4h30'24"6'25"2'05"10'19"3'20"
4'25"7'06"3h06'21"4h35'36"6'32"2'07"10'31"3'24"
4'30"7'15"3h09'52"4h40'48"6'39"2'09"10'43"3'28"
4'35"7'23"3h13'23"4h46'00"6'47"2'12"10'55"3'32"
4'40"7'31"3h16'54"4h51'12"6'54"2'14"11'06"3'36"
4'45"7'39"3h20'25"4h56'24"7'01"2'16"11'18"3'40"
4'50"7'47"3h23'56"5h01'36"7'09"2'19"11'30"3'43"
4'55"7'55"3h27'27"5h06'48"7'16"2'21"11'42"3'47"
5'00"8'03"3h30'58"5h12'00"7'24"2'24"11'54"3'51"
5'05"8'11"3h34'29"5h17'12"7'31"2'26"12'06"3'55"
5'10"8'19"3h38'00"5h22'24"7'38"2'28"12'18"3'59"
5'15"8'27"3h41'31"5h27'37"7'46"2'31"12'30"4'03"
5'20"8'35"3h45'02"5h32'49"7'53"2'33"12'42"4'07"
5'25"8'43"3h48'33"5h38'01"8'01"2'36"12'54"4'10"
5'30"8'51"3h52'04"5h43'13"8'08"2'38"13'05"4'14"
5'35"8'59"3h55'35"5h48'25"8'15"2'40"13'17"4'18"
5'40"9'07"3h59'06"5h53'37"8'23"2'43"13'29"4'22"
5'45"9'15"4h02'37"5h58'49"8'30"2'45"13'41"4'26"
5'50"9'23"4h06'08"6h04'01"8'38"2'48"13'53"4'30"
5'55"9'31"4h09'39"6h09'13"8'45"2'50"14'05"4'34"
6'00"9'39"4h13'10"6h14'25"8'52"2'52"14'17"4'37"
6'05"9'47"4h16'41"6h19'37"9'00"2'55"14'29"4'41"
6'10"9'55"4h20'12"6h24'49"9'07"2'57"14'41"4'45"
6'15"10'04"4h23'43"6h30'01"9'15"3'00"14'53"4'49"
6'20"10'12"4h27'14"6h35'13"9'22"3'02"15'04"4'53"
6'25"10'20"4h30'45"6h40'25"9'29"3'04"15'16"4'57"
6'30"10'28"4h34'16"6h45'37"9'37"3'07"15'28"5'01"
6'35"10'36"4h37'47"6h50'49"9'44"3'09"15'40"5'04"
6'40"10'44"4h41'18"6h56'01"9'52"3'12"15'52"5'08"
6'45"10'52"4h44'49"7h01'13"9'59"3'14"16'04"5'12"
6'50"11'00"4h48'20"7h06'25"10'06"3'16"16'16"5'16"
6'55"11'08"4h51'51"7h11'37"10'14"3'19"16'28"5'20"
7'00"11'16"4h55'22"7h16'49"10'21"3'21"16'40"5'24"
7'05"11'24"4h58'53"7h22'01"10'29"3'24"16'52"5'28"
7'10"11'32"5h02'24"7h27'13"10'36"3'26"17'03"5'31"
7'15"11'40"5h05'55"7h32'25"10'43"3'28"17'15"5'35"
7'20"11'48"5h09'26"7h37'37"10'51"3'31"17'27"5'39"
7'25"11'56"5h12'57"7h42'49"10'58"3'33"17'39"5'43"
7'30"12'04"5h16'28"7h48'01"11'05"3'35"17'51"5'47"
7'35"12'12"5h19'59"7h53'13"11'13"3'38"18'03"5'51"
7'40"12'20"5h23'30"7h58'25"11'20"3'40"18'15"5'55"
7'45"12'28"5h27'01"8h03'37"11'28"3'43"18'27"5'58"
7'50"12'36"5h30'32"8h08'49"11'35"3'45"18'39"6'02"
7'55"12'44"5h34'03"8h14'01"11'42"3'47"18'51"6'06"
8'00"12'52"5h37'34"8h19'13"11'50"3'50"19'02"6'10"

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.