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Nagano Marathon 2025 | Course | Altimetry

Nagano Marathon 2025: route, altitude, uphill/downhill statistics, gpx file

Note: "Nagano Marathon 2025" is NOT organized by goandrace.com

Nagano Marathon 2025 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Nagano Marathon 2025" in Nagano (Sunday, April 20, 2025). Explore the route!

Do you want to fly over the path with a Google Earth 3D video? Click on the following link: Nagano Marathon 2025, 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 Nagano Marathon 2025 event page.

Nagano Marathon 2025: route altimetric information


Nagano Marathon 2025: GNR-GAP index (v 1.0, experimental, see more)

Nagano Marathon 2025: interactive route

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

Nagano Marathon 2025: altimetry graph

Nagano Marathon 2025: slope graph

Nagano Marathon 2025: percentage distribution of slope

Nagano Marathon 2025: Km by km route altimetry analysis

Lap Start Alt. End Alt. Diff. Alt. Aver. Slope Min Alt. Max Alt. Tot Climb Tot Descent
KM 0-1 359 358 -1 -0.1% 358 359 0 1
KM 1-2 358 356 -1 -0.1% 356 357 0 2
KM 2-3 356 356 0 0% 356 356 0 0
KM 3-4 356 358 +3 +0.3% 356 358 3 0
KM 4-5 358 367 +9 +0.9% 360 367 9 0
KM 5-6 367 373 +6 +0.6% 368 374 8 1
KM 6-7 373 373 0 0% 373 373 0 0
KM 7-8 373 363 -10 -1.0% 364 372 0 10
KM 8-9 363 360 -4 -0.4% 361 363 0 4
KM 9-10 360 352 -7 -0.7% 352 359 0 7
KM 10-11 352 349 -3 -0.3% 349 352 0 3
KM 11-12 349 348 -1 -0.1% 349 349 0 1
KM 12-13 348 345 -3 -0.3% 346 348 0 3
KM 13-14 345 344 -1 -0.1% 344 345 0 1
KM 14-15 344 343 -2 -0.2% 343 345 0 2
KM 15-16 343 341 -2 -0.2% 341 343 0 3
KM 16-17 341 339 -2 -0.2% 339 341 0 2
KM 17-18 339 339 0 0% 339 339 0 0
KM 18-19 339 342 +3 +0.3% 339 341 3 0
KM 19-20 342 344 +2 +0.2% 342 344 2 0
KM 20-21 344 343 0 0% 344 344 0 0
KM 21-22 343 345 +2 +0.2% 343 345 2 0
KM 22-23 345 347 +2 +0.2% 345 347 2 0
KM 23-24 347 347 0 0% 347 348 0 0
KM 24-25 347 347 -1 -0.1% 347 348 0 1
KM 25-26 347 347 0 0% 347 347 0 0
KM 26-27 347 349 +2 +0.2% 347 349 2 0
KM 27-28 349 348 -1 -0.1% 348 349 0 1
KM 28-29 348 349 +1 +0.1% 348 350 1 0
KM 29-30 349 350 0 0% 349 350 1 0
KM 30-31 350 350 0 0% 350 350 0 0
KM 31-32 350 352 +2 +0.2% 350 352 3 0
KM 32-33 352 351 -1 -0.1% 351 352 0 1
KM 33-34 351 353 +2 +0.2% 350 353 3 1
KM 34-35 353 354 +1 +0.1% 353 354 1 0
KM 35-36 354 353 -1 -0.1% 353 354 1 2
KM 36-37 353 351 -2 -0.2% 351 353 0 2
KM 37-38 351 349 -2 -0.2% 349 351 0 2
KM 38-39 349 348 0 0% 348 349 0 1
KM 39-40 348 354 +5 +0.5% 348 354 5 0
KM 40-41 354 348 -6 -0.6% 354 354 1 6
KM 41-42 348 356 +8 +0.8% 355 356 8 0
KM 42-42.20 356 357 +1 +0.1% 357 358 10 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 0.6% 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 3h32'12". 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 3h16'54", the estimate is to complete this course in 3h18'03", corresponding to a pace of 4'42"/km (or 7'33"/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 3h10'59" (pace of 4'32"/km or 7'17"/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"2h07'19"3'01"0'01"4'51"0'02"
3'05"4'58"2h10'06"2h10'51"3'06"0'01"4'59"0'02"
3'10"5'06"2h13'37"2h14'24"3'11"0'01"5'08"0'02"
3'15"5'14"2h17'08"2h17'56"3'16"0'01"5'16"0'02"
3'20"5'22"2h20'39"2h21'28"3'21"0'01"5'24"0'02"
3'25"5'30"2h24'09"2h25'00"3'26"0'01"5'32"0'02"
3'30"5'38"2h27'40"2h28'32"3'31"0'01"5'40"0'02"
3'35"5'46"2h31'11"2h32'05"3'36"0'01"5'48"0'02"
3'40"5'54"2h34'42"2h35'37"3'41"0'01"5'56"0'02"
3'45"6'02"2h38'13"2h39'09"3'46"0'01"6'04"0'02"
3'50"6'10"2h41'44"2h42'41"3'51"0'01"6'12"0'02"
3'55"6'18"2h45'15"2h46'13"3'56"0'01"6'20"0'02"
4'00"6'26"2h48'46"2h49'46"4'01"0'01"6'29"0'02"
4'05"6'34"2h52'17"2h53'18"4'06"0'01"6'37"0'02"
4'10"6'42"2h55'48"2h56'50"4'11"0'01"6'45"0'02"
4'15"6'50"2h59'19"3h00'22"4'16"0'01"6'53"0'02"
4'20"6'58"3h02'50"3h03'54"4'22"0'02"7'01"0'02"
4'25"7'06"3h06'21"3h07'27"4'27"0'02"7'09"0'02"
4'30"7'15"3h09'52"3h10'59"4'32"0'02"7'17"0'03"
4'35"7'23"3h13'23"3h14'31"4'37"0'02"7'25"0'03"
4'40"7'31"3h16'54"3h18'03"4'42"0'02"7'33"0'03"
4'45"7'39"3h20'25"3h21'36"4'47"0'02"7'41"0'03"
4'50"7'47"3h23'56"3h25'08"4'52"0'02"7'49"0'03"
4'55"7'55"3h27'27"3h28'40"4'57"0'02"7'58"0'03"
5'00"8'03"3h30'58"3h32'12"5'02"0'02"8'06"0'03"
5'05"8'11"3h34'29"3h35'44"5'07"0'02"8'14"0'03"
5'10"8'19"3h38'00"3h39'17"5'12"0'02"8'22"0'03"
5'15"8'27"3h41'31"3h42'49"5'17"0'02"8'30"0'03"
5'20"8'35"3h45'02"3h46'21"5'22"0'02"8'38"0'03"
5'25"8'43"3h48'33"3h49'53"5'27"0'02"8'46"0'03"
5'30"8'51"3h52'04"3h53'25"5'32"0'02"8'54"0'03"
5'35"8'59"3h55'35"3h56'58"5'37"0'02"9'02"0'03"
5'40"9'07"3h59'06"4h00'30"5'42"0'02"9'10"0'03"
5'45"9'15"4h02'37"4h04'02"5'47"0'02"9'18"0'03"
5'50"9'23"4h06'08"4h07'34"5'52"0'02"9'27"0'03"
5'55"9'31"4h09'39"4h11'06"5'57"0'02"9'35"0'03"
6'00"9'39"4h13'10"4h14'39"6'02"0'02"9'43"0'03"
6'05"9'47"4h16'41"4h18'11"6'07"0'02"9'51"0'03"
6'10"9'55"4h20'12"4h21'43"6'12"0'02"9'59"0'03"
6'15"10'04"4h23'43"4h25'15"6'17"0'02"10'07"0'04"
6'20"10'12"4h27'14"4h28'48"6'22"0'02"10'15"0'04"
6'25"10'20"4h30'45"4h32'20"6'27"0'02"10'23"0'04"
6'30"10'28"4h34'16"4h35'52"6'32"0'02"10'31"0'04"
6'35"10'36"4h37'47"4h39'24"6'37"0'02"10'39"0'04"
6'40"10'44"4h41'18"4h42'56"6'42"0'02"10'48"0'04"
6'45"10'52"4h44'48"4h46'29"6'47"0'02"10'56"0'04"
6'50"11'00"4h48'19"4h50'01"6'52"0'02"11'04"0'04"
6'55"11'08"4h51'50"4h53'33"6'57"0'02"11'12"0'04"
7'00"11'16"4h55'21"4h57'05"7'02"0'02"11'20"0'04"
7'05"11'24"4h58'52"5h00'37"7'07"0'02"11'28"0'04"
7'10"11'32"5h02'23"5h04'10"7'13"0'03"11'36"0'04"
7'15"11'40"5h05'54"5h07'42"7'18"0'03"11'44"0'04"
7'20"11'48"5h09'25"5h11'14"7'23"0'03"11'52"0'04"
7'25"11'56"5h12'56"5h14'46"7'28"0'03"12'00"0'04"
7'30"12'04"5h16'27"5h18'19"7'33"0'03"12'08"0'04"
7'35"12'12"5h19'58"5h21'51"7'38"0'03"12'17"0'04"
7'40"12'20"5h23'29"5h25'23"7'43"0'03"12'25"0'04"
7'45"12'28"5h27'00"5h28'55"7'48"0'03"12'33"0'04"
7'50"12'36"5h30'31"5h32'27"7'53"0'03"12'41"0'04"
7'55"12'44"5h34'02"5h36'00"7'58"0'03"12'49"0'04"
8'00"12'52"5h37'33"5h39'32"8'03"0'03"12'57"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.