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2° Derthona Half Marathon | 2023 Course | Altimetry

2° Derthona Half Marathon: 2023 route, altimetry, uphill/downhill statistics, gpx file

Note: "2° Derthona Half Marathon" is NOT organized by goandrace.com

2° Derthona Half Marathon course map. Lenght: 21.098 km (13.1 mi).

21.098 km (13.1 mi) course map of the event "2° Derthona Half Marathon" in Tortona, in the Province of Alessandria (Sunday, March 12, 2023). Explore the route!

Do you want to fly over the path with a Google Earth 3D video? Click on the following link: 2° Derthona Half Marathon, 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 2° Derthona Half Marathon event page.

2° Derthona Half Marathon: route altimetric information


2° Derthona Half Marathon: GNR-GAP index (v 1.0, experimental, see more)

2° Derthona Half Marathon: interactive route

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

2° Derthona Half Marathon: altimetry graph

2° Derthona Half Marathon: slope graph

2° Derthona Half Marathon: percentage distribution of slope

2° Derthona Half Marathon: Km by km route altimetry analysis

Lap Start Alt. End Alt. Diff. Alt. Aver. Slope Min Alt. Max Alt. Tot Climb Tot Descent
KM 0-1 116 114 -2 -0.2% 110 119 2 4
KM 1-2 114 123 +8 +0.8% 114 122 8 0
KM 2-3 123 127 +5 +0.5% 123 127 5 0
KM 3-4 127 126 -1 -0.1% 124 128 2 3
KM 4-5 126 120 -6 -0.6% 119 129 2 9
KM 5-6 120 117 -3 -0.3% 115 120 2 4
KM 6-7 117 119 +2 +0.2% 117 120 3 0
KM 7-8 119 126 +7 +0.7% 119 126 7 0
KM 8-9 126 134 +8 +0.8% 126 134 8 0
KM 9-10 134 128 -6 -0.6% 129 132 0 6
KM 10-11 128 122 -6 -0.6% 122 129 1 8
KM 11-12 122 118 -4 -0.4% 117 122 0 5
KM 12-13 118 114 -4 -0.4% 115 118 0 4
KM 13-14 114 109 -5 -0.5% 109 114 0 5
KM 14-15 109 107 -2 -0.2% 106 108 1 3
KM 15-16 107 107 0 0% 105 107 1 1
KM 16-17 107 108 +1 +0.1% 106 108 2 1
KM 17-18 108 108 0 0% 108 108 0 0
KM 18-19 108 107 -1 -0.1% 107 110 2 3
KM 19-20 107 109 +2 +0.2% 107 109 4 2
KM 20-21 109 117 +8 +0.8% 109 119 8 0
KM 21-21.10 117 117 0 0% 117 117 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 1.4% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 20.9 km course, corresponding to a finish time of 1h44'25", is estimated to complete this course in 1h45'51". The recalculated average pace (GAP) improves to 5'04"/km (8'09"/mi), making it 0'04"/km (0'07"/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 1h37'27", the estimate is to complete this course in 1h38'48", corresponding to a pace of 4'44"/km (or 7'37"/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 1h35'16" (pace of 4'34"/km or 7'20"/mi) corresponds to a time of 1h33'59" 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"1h02'39"1h03'30"3'02"0'02"4'54"0'04"
3'05"4'58"1h04'23"1h05'16"3'08"0'03"5'02"0'04"
3'10"5'06"1h06'08"1h07'02"3'13"0'03"5'10"0'04"
3'15"5'14"1h07'52"1h08'48"3'18"0'03"5'18"0'04"
3'20"5'22"1h09'37"1h10'34"3'23"0'03"5'26"0'04"
3'25"5'30"1h11'21"1h12'20"3'28"0'03"5'34"0'05"
3'30"5'38"1h13'05"1h14'06"3'33"0'03"5'43"0'05"
3'35"5'46"1h14'50"1h15'51"3'38"0'03"5'51"0'05"
3'40"5'54"1h16'34"1h17'37"3'43"0'03"5'59"0'05"
3'45"6'02"1h18'19"1h19'23"3'48"0'03"6'07"0'05"
3'50"6'10"1h20'03"1h21'09"3'53"0'03"6'15"0'05"
3'55"6'18"1h21'48"1h22'55"3'58"0'03"6'23"0'05"
4'00"6'26"1h23'32"1h24'41"4'03"0'03"6'32"0'05"
4'05"6'34"1h25'16"1h26'27"4'08"0'03"6'40"0'05"
4'10"6'42"1h27'01"1h28'12"4'13"0'03"6'48"0'06"
4'15"6'50"1h28'45"1h29'58"4'18"0'03"6'56"0'06"
4'20"6'58"1h30'30"1h31'44"4'24"0'04"7'04"0'06"
4'25"7'06"1h32'14"1h33'30"4'29"0'04"7'12"0'06"
4'30"7'15"1h33'59"1h35'16"4'34"0'04"7'20"0'06"
4'35"7'23"1h35'43"1h37'02"4'39"0'04"7'29"0'06"
4'40"7'31"1h37'27"1h38'48"4'44"0'04"7'37"0'06"
4'45"7'39"1h39'12"1h40'33"4'49"0'04"7'45"0'06"
4'50"7'47"1h40'56"1h42'19"4'54"0'04"7'53"0'06"
4'55"7'55"1h42'41"1h44'05"4'59"0'04"8'01"0'07"
5'00"8'03"1h44'25"1h45'51"5'04"0'04"8'09"0'07"
5'05"8'11"1h46'10"1h47'37"5'09"0'04"8'18"0'07"
5'10"8'19"1h47'54"1h49'23"5'14"0'04"8'26"0'07"
5'15"8'27"1h49'38"1h51'09"5'19"0'04"8'34"0'07"
5'20"8'35"1h51'23"1h52'54"5'24"0'04"8'42"0'07"
5'25"8'43"1h53'07"1h54'40"5'29"0'04"8'50"0'07"
5'30"8'51"1h54'52"1h56'26"5'35"0'05"8'58"0'07"
5'35"8'59"1h56'36"1h58'12"5'40"0'05"9'07"0'07"
5'40"9'07"1h58'21"1h59'58"5'45"0'05"9'15"0'07"
5'45"9'15"2h00'05"2h01'44"5'50"0'05"9'23"0'08"
5'50"9'23"2h01'49"2h03'30"5'55"0'05"9'31"0'08"
5'55"9'31"2h03'34"2h05'15"6'00"0'05"9'39"0'08"
6'00"9'39"2h05'18"2h07'01"6'05"0'05"9'47"0'08"
6'05"9'47"2h07'03"2h08'47"6'10"0'05"9'55"0'08"
6'10"9'55"2h08'47"2h10'33"6'15"0'05"10'04"0'08"
6'15"10'04"2h10'32"2h12'19"6'20"0'05"10'12"0'08"
6'20"10'12"2h12'16"2h14'05"6'25"0'05"10'20"0'08"
6'25"10'20"2h14'00"2h15'51"6'30"0'05"10'28"0'08"
6'30"10'28"2h15'45"2h17'37"6'35"0'05"10'36"0'09"
6'35"10'36"2h17'29"2h19'22"6'40"0'05"10'44"0'09"
6'40"10'44"2h19'14"2h21'08"6'45"0'05"10'53"0'09"
6'45"10'52"2h20'58"2h22'54"6'51"0'06"11'01"0'09"
6'50"11'00"2h22'43"2h24'40"6'56"0'06"11'09"0'09"
6'55"11'08"2h24'27"2h26'26"7'01"0'06"11'17"0'09"
7'00"11'16"2h26'11"2h28'12"7'06"0'06"11'25"0'09"
7'05"11'24"2h27'56"2h29'58"7'11"0'06"11'33"0'09"
7'10"11'32"2h29'40"2h31'43"7'16"0'06"11'41"0'09"
7'15"11'40"2h31'25"2h33'29"7'21"0'06"11'50"0'10"
7'20"11'48"2h33'09"2h35'15"7'26"0'06"11'58"0'10"
7'25"11'56"2h34'54"2h37'01"7'31"0'06"12'06"0'10"
7'30"12'04"2h36'38"2h38'47"7'36"0'06"12'14"0'10"
7'35"12'12"2h38'22"2h40'33"7'41"0'06"12'22"0'10"
7'40"12'20"2h40'07"2h42'19"7'46"0'06"12'30"0'10"
7'45"12'28"2h41'51"2h44'04"7'51"0'06"12'39"0'10"
7'50"12'36"2h43'36"2h45'50"7'56"0'06"12'47"0'10"
7'55"12'44"2h45'20"2h47'36"8'02"0'07"12'55"0'10"
8'00"12'52"2h47'05"2h49'22"8'07"0'07"13'03"0'11"

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.