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Run Crazy Horse Marathon 2023, course map and altimetry

Run Crazy Horse Marathon 2023: route, altimetry, gpx

Note: "Run Crazy Horse Marathon 2023" is NOT organized by goandrace.com

Run Crazy Horse Marathon 2023 course map. Lenght: 42.195 km (26.2 mi).

42.195 km (26.2 mi) course map of the event "Run Crazy Horse Marathon 2023" in Custer, South Dakota (Sunday, October 8, 2023). Explore the route!

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

Run Crazy Horse Marathon 2023: route altimetric information


Run Crazy Horse Marathon 2023: GNR-GAP index (v 1.0, experimental, see more)

Run Crazy Horse Marathon 2023: interactive route

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

Run Crazy Horse Marathon 2023: altimetry graph

Run Crazy Horse Marathon 2023: slope graph

Run Crazy Horse Marathon 2023: percentage distribution of slope

Run Crazy Horse 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 1816 1812 -4 -0.4% 1793 1816 16 20
KM 1-2 1812 1821 +10 +1.0% 1806 1822 17 7
KM 2-3 1821 1851 +29 +2.9% 1818 1850 30 0
KM 3-4 1851 1821 -30 -3.0% 1818 1851 2 32
KM 4-5 1821 1798 -23 -2.3% 1794 1822 8 31
KM 5-6 1798 1781 -17 -1.7% 1781 1809 11 28
KM 6-7 1781 1764 -17 -1.7% 1763 1781 1 18
KM 7-8 1764 1747 -17 -1.7% 1745 1764 2 19
KM 8-9 1747 1728 -18 -1.8% 1723 1748 0 19
KM 9-10 1728 1692 -36 -3.6% 1692 1729 0 36
KM 10-11 1692 1674 -18 -1.8% 1674 1692 0 18
KM 11-12 1674 1648 -26 -2.6% 1649 1682 8 34
KM 12-13 1648 1637 -11 -1.1% 1636 1648 1 12
KM 13-14 1637 1625 -12 -1.2% 1625 1633 0 12
KM 14-15 1625 1615 -10 -1.0% 1615 1623 0 10
KM 15-16 1615 1615 0 0% 1615 1619 4 4
KM 16-17 1615 1623 +8 +0.8% 1615 1623 8 0
KM 17-18 1623 1646 +23 +2.3% 1623 1646 23 0
KM 18-19 1646 1656 +10 +1.0% 1646 1656 10 0
KM 19-20 1656 1678 +22 +2.2% 1660 1680 24 2
KM 20-21 1678 1685 +7 +0.7% 1673 1684 11 4
KM 21-22 1685 1707 +22 +2.2% 1685 1708 23 1
KM 22-23 1707 1733 +26 +2.6% 1707 1735 26 0
KM 23-24 1733 1764 +31 +3.1% 1736 1763 33 2
KM 24-25 1764 1775 +11 +1.1% 1763 1775 12 1
KM 25-26 1775 1786 +11 +1.1% 1775 1789 12 1
KM 26-27 1786 1759 -27 -2.7% 1759 1784 0 27
KM 27-28 1759 1747 -11 -1.1% 1750 1755 0 11
KM 28-29 1747 1710 -37 -3.7% 1710 1747 0 37
KM 29-30 1710 1683 -27 -2.7% 1677 1709 0 27
KM 30-31 1683 1642 -41 -4.1% 1643 1680 0 41
KM 31-32 1642 1628 -15 -1.5% 1628 1643 0 15
KM 32-33 1628 1608 -20 -2.0% 1608 1627 0 20
KM 33-34 1608 1605 -3 -0.3% 1604 1610 0 3
KM 34-35 1605 1591 -14 -1.4% 1591 1605 0 14
KM 35-36 1591 1582 -9 -0.9% 1582 1591 2 11
KM 36-37 1582 1574 -8 -0.8% 1567 1583 4 12
KM 37-38 1574 1556 -18 -1.8% 1556 1577 3 21
KM 38-39 1556 1547 -9 -0.9% 1547 1561 1 10
KM 39-40 1547 1535 -12 -1.2% 1535 1547 0 12
KM 40-41 1535 1527 -8 -0.8% 1527 1536 1 9
KM 41-42 1527 1522 -5 -0.5% 1523 1531 4 9
KM 42-42.20 1522 1522 0 0% 1522 1522 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 0.4% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 42 km course, corresponding to a finish time of 3h30'12", is estimated to complete this course in 3h30'58". The recalculated average pace (GAP) improves to 5'01"/km (8'05"/mi), making it 0'01"/km (0'02"/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 3h16'11", the estimate is to complete this course in 3h16'53", corresponding to a pace of 4'41"/km (or 7'32"/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 3h09'52" (pace of 4'31"/km or 7'16"/mi) corresponds to a time of 3h09'11" 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"2h06'07"2h06'34"3'01"0'01"4'51"0'01"
3'10"5'06"2h13'07"2h13'36"3'11"0'01"5'07"0'01"
3'20"5'22"2h20'08"2h20'38"3'21"0'01"5'23"0'01"
3'30"5'38"2h27'08"2h27'40"3'31"0'01"5'39"0'01"
3'40"5'54"2h34'09"2h34'42"3'41"0'01"5'55"0'01"
3'50"6'10"2h41'09"2h41'44"3'51"0'01"6'11"0'01"
4'00"6'26"2h48'09"2h48'46"4'01"0'01"6'28"0'01"
4'10"6'42"2h55'10"2h55'48"4'11"0'01"6'44"0'01"
4'20"6'58"3h02'10"3h02'50"4'21"0'01"6'60"0'02"
4'30"7'15"3h09'11"3h09'52"4'31"0'01"7'16"0'02"
4'40"7'31"3h16'11"3h16'54"4'41"0'01"7'32"0'02"
4'50"7'47"3h23'11"3h23'56"4'51"0'01"7'48"0'02"
5'00"8'03"3h30'12"3h30'58"5'01"0'01"8'05"0'02"
5'10"8'19"3h37'12"3h37'59"5'11"0'01"8'21"0'02"
5'20"8'35"3h44'13"3h45'01"5'21"0'01"8'37"0'02"
5'30"8'51"3h51'13"3h52'03"5'31"0'01"8'53"0'02"
5'40"9'07"3h58'13"3h59'05"5'41"0'01"9'09"0'02"
5'50"9'23"4h05'14"4h06'07"5'51"0'01"9'25"0'02"
6'00"9'39"4h12'14"4h13'09"6'01"0'01"9'41"0'02"
6'10"9'55"4h19'15"4h20'11"6'11"0'01"9'58"0'02"
6'20"10'12"4h26'15"4h27'13"6'21"0'01"10'14"0'02"
6'30"10'28"4h33'16"4h34'15"6'31"0'01"10'30"0'02"
6'40"10'44"4h40'16"4h41'17"6'41"0'01"10'46"0'02"
6'50"10'60"4h47'16"4h48'19"6'51"0'01"11'02"0'02"
7'00"11'16"4h54'17"4h55'21"7'02"0'02"11'18"0'02"
7'10"11'32"5h01'17"5h02'23"7'12"0'02"11'35"0'03"
7'20"11'48"5h08'18"5h09'25"7'22"0'02"11'51"0'03"
7'30"12'04"5h15'18"5h16'27"7'32"0'02"12'07"0'03"
7'40"12'20"5h22'18"5h23'28"7'42"0'02"12'23"0'03"
7'50"12'36"5h29'19"5h30'30"7'52"0'02"12'39"0'03"
8'00"12'52"5h36'19"5h37'32"8'02"0'02"12'55"0'03"

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.