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Great Wall Marathon 2024, course map and altimetry

Great Wall Marathon 2024: route, altimetry, gpx

Note: "Great Wall Marathon 2024" is NOT organized by goandrace.com

Great Wall Marathon 2024 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Great Wall Marathon 2024" in Huangyaguan (Saturday, May 18, 2024). Explore the route!

Do you want to fly over the path with a Google Earth 3D video? Click on the following link: Great Wall Marathon 2024, 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 Great Wall Marathon 2024 event page.

Great Wall Marathon 2024: route altimetric information


Great Wall Marathon 2024: GNR-GAP index (v 1.0, experimental, see more)

Great Wall Marathon 2024: interactive route

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

Great Wall Marathon 2024: altimetry graph

Great Wall Marathon 2024: slope graph

Great Wall Marathon 2024: percentage distribution of slope

Great Wall Marathon 2024: Km by km route altimetry analysis

Lap Start Alt. End Alt. Diff. Alt. Aver. Slope Min Alt. Max Alt. Tot Climb Tot Descent
KM 0-1 244 238 -6 -0.6% 236 244 2 8
KM 1-2 238 295 +57 +5.7% 237 294 57 0
KM 2-3 295 301 +6 +0.6% 291 314 28 22
KM 3-4 301 369 +68 +6.8% 301 365 68 0
KM 4-5 369 398 +29 +2.9% 367 397 31 2
KM 5-6 398 488 +90 +9.0% 402 496 94 4
KM 6-7 488 359 -129 -12.9% 370 487 9 138
KM 7-8 359 259 -99 -9.9% 241 333 19 118
KM 8-9 259 236 -24 -2.4% 236 258 1 25
KM 9-10 236 229 -7 -0.7% 230 237 0 7
KM 10-11 229 221 -8 -0.8% 222 228 0 8
KM 11-12 221 214 -7 -0.7% 216 224 6 13
KM 12-13 214 208 -6 -0.6% 208 208 0 6
KM 13-14 208 205 -3 -0.3% 207 208 0 3
KM 14-15 205 217 +12 +1.2% 199 217 18 6
KM 15-16 217 206 -11 -1.1% 202 217 3 14
KM 16-17 206 222 +16 +1.6% 210 217 16 0
KM 17-18 222 237 +15 +1.5% 227 236 15 0
KM 18-19 237 254 +17 +1.7% 240 245 17 0
KM 19-20 254 275 +21 +2.1% 270 275 21 0
KM 20-21 275 304 +29 +2.9% 276 307 32 3
KM 21-22 304 362 +58 +5.8% 304 362 58 0
KM 22-23 362 374 +12 +1.2% 373 390 27 15
KM 23-24 374 357 -17 -1.7% 348 393 36 53
KM 24-25 357 334 -23 -2.3% 334 364 11 34
KM 25-26 334 284 -50 -5.0% 285 334 0 50
KM 26-27 284 322 +38 +3.8% 275 321 44 6
KM 27-28 322 323 +1 +0.1% 324 339 13 12
KM 28-29 323 255 -68 -6.8% 264 320 0 68
KM 29-30 255 209 -46 -4.6% 210 249 0 46
KM 30-31 209 211 +2 +0.2% 208 211 4 2
KM 31-32 211 223 +12 +1.2% 212 225 12 0
KM 32-33 223 230 +7 +0.7% 222 230 8 1
KM 33-34 230 236 +6 +0.6% 230 237 7 1
KM 34-35 236 263 +27 +2.7% 236 248 29 2
KM 35-36 263 456 +193 +19.3% 282 456 200 7
KM 36-37 456 423 -33 -3.3% 422 495 39 72
KM 37-38 423 370 -54 -5.4% 381 423 3 57
KM 38-39 370 308 -62 -6.2% 308 376 9 71
KM 39-40 308 308 0 0% 290 307 20 20
KM 40-41 308 237 -71 -7.1% 237 311 0 71
KM 41-42 237 240 +3 +0.3% 235 239 6 3
KM 42-42.20 240 242 +2 +0.2% 242 242 5 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 15.4% 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 4h03'21". The recalculated average pace (GAP) improves to 5'46"/km (9'17"/mi), making it 0'46"/km (1'14"/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 6'/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 3h47'08", corresponding to a pace of 5'23"/km (or 8'40"/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 3h39'01" (pace of 5'11"/km or 8'21"/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"2h26'01"3'28"0'28"5'34"0'44"
3'10"5'06"2h13'37"2h34'07"3'39"0'29"5'53"0'47"
3'20"5'22"2h20'39"2h42'14"3'51"0'31"6'11"0'49"
3'30"5'38"2h27'40"2h50'21"4'02"0'32"6'30"0'52"
3'40"5'54"2h34'42"2h58'28"4'14"0'34"6'48"0'54"
3'50"6'10"2h41'44"3h06'34"4'25"0'35"7'07"0'57"
4'00"6'26"2h48'46"3h14'41"4'37"0'37"7'26"0'59"
4'10"6'42"2h55'48"3h22'48"4'48"0'38"7'44"1'02"
4'20"6'58"3h02'50"3h30'54"4'60"0'40"8'03"1'04"
4'30"7'15"3h09'52"3h39'01"5'11"0'41"8'21"1'07"
4'40"7'31"3h16'54"3h47'08"5'23"0'43"8'40"1'09"
4'50"7'47"3h23'56"3h55'15"5'35"0'45"8'58"1'12"
5'00"8'03"3h30'58"4h03'21"5'46"0'46"9'17"1'14"
5'10"8'19"3h38'00"4h11'28"5'58"0'48"9'35"1'17"
5'20"8'35"3h45'02"4h19'35"6'09"0'49"9'54"1'19"
5'30"8'51"3h52'04"4h27'42"6'21"0'51"10'13"1'22"
5'40"9'07"3h59'06"4h35'48"6'32"0'52"10'31"1'24"
5'50"9'23"4h06'08"4h43'55"6'44"0'54"10'50"1'26"
6'00"9'39"4h13'10"4h52'02"6'55"0'55"11'08"1'29"
6'10"9'55"4h20'12"5h00'08"7'07"0'57"11'27"1'31"
6'20"10'12"4h27'14"5h08'15"7'18"0'58"11'45"1'34"
6'30"10'28"4h34'16"5h16'22"7'30"0'60"12'04"1'36"
6'40"10'44"4h41'18"5h24'29"7'41"1'01"12'23"1'39"
6'50"10'60"4h48'19"5h32'35"7'53"1'03"12'41"1'41"
7'00"11'16"4h55'21"5h40'42"8'04"1'04"12'60"1'44"
7'10"11'32"5h02'23"5h48'49"8'16"1'06"13'18"1'46"
7'20"11'48"5h09'25"5h56'56"8'28"1'08"13'37"1'49"
7'30"12'04"5h16'27"6h05'02"8'39"1'09"13'55"1'51"
7'40"12'20"5h23'29"6h13'09"8'51"1'11"14'14"1'54"
7'50"12'36"5h30'31"6h21'16"9'02"1'12"14'33"1'56"
8'00"12'52"5h37'33"6h29'22"9'14"1'14"14'51"1'59"

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.