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Broken Arrow Skyrace, 2024 course map and altimetry

Broken Arrow Skyrace: 2024 route, altimetry, gpx

Note: "Broken Arrow Skyrace" is NOT organized by goandrace.com

Broken Arrow Skyrace course map. Lenght: 46 km (28.6 mi).

46 km (28.6 mi) course map of the event "Broken Arrow Skyrace" in Olympic Valley, California (Saturday, June 22, 2024). Explore the route!

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

Broken Arrow Skyrace: route altimetric information


Broken Arrow Skyrace: GNR-GAP index (v 1.0, experimental, see more)

Broken Arrow Skyrace: interactive route

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

Broken Arrow Skyrace: altimetry graph

Broken Arrow Skyrace: slope graph

Broken Arrow Skyrace: percentage distribution of slope

Broken Arrow Skyrace: 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 1892 1915 +23 +2.3% 1891 1918 27 4
KM 1-2 1915 2030 +114 +11.4% 1908 2027 122 8
KM 2-3 2030 2095 +65 +6.5% 2030 2094 65 0
KM 3-4 2095 1996 -99 -9.9% 1997 2098 1 100
KM 4-5 1996 2005 +8 +0.8% 1996 2007 11 2
KM 5-6 2005 2106 +101 +10.1% 2005 2102 101 0
KM 6-7 2106 2259 +153 +15.3% 2112 2257 153 0
KM 7-8 2259 2297 +38 +3.8% 2259 2292 50 13
KM 8-9 2297 2426 +129 +12.9% 2300 2427 130 1
KM 9-10 2426 2360 -66 -6.6% 2348 2425 11 77
KM 10-11 2360 2568 +208 +20.8% 2361 2561 208 0
KM 11-12 2568 2641 +73 +7.3% 2568 2654 86 12
KM 12-13 2641 2565 -76 -7.6% 2567 2638 0 76
KM 13-14 2565 2469 -97 -9.7% 2473 2565 0 97
KM 14-15 2469 2343 -126 -12.6% 2342 2468 0 126
KM 15-16 2343 2443 +101 +10.1% 2344 2443 101 0
KM 16-17 2443 2412 -31 -3.1% 2413 2474 30 61
KM 17-18 2412 2298 -114 -11.4% 2299 2409 0 114
KM 18-19 2298 2214 -84 -8.4% 2214 2297 0 84
KM 19-20 2214 2079 -135 -13.5% 2083 2211 0 135
KM 20-21 2079 1986 -93 -9.3% 1987 2078 0 93
KM 21-22 1986 1900 -86 -8.6% 1901 1981 0 86
KM 22-23 1900 1915 +15 +1.5% 1895 1915 18 3
KM 23-24 1915 2046 +131 +13.1% 1916 2046 131 0
KM 24-25 2046 2096 +50 +5.0% 2048 2097 50 0
KM 25-26 2096 1998 -98 -9.8% 1997 2096 0 98
KM 26-27 1998 2006 +8 +0.8% 1998 2007 10 2
KM 27-28 2006 2125 +118 +11.8% 2007 2124 118 0
KM 28-29 2125 2260 +136 +13.6% 2132 2259 136 0
KM 29-30 2260 2303 +43 +4.3% 2263 2296 43 0
KM 30-31 2303 2421 +118 +11.8% 2306 2427 124 6
KM 31-32 2421 2363 -58 -5.8% 2348 2421 14 72
KM 32-33 2363 2578 +215 +21.5% 2364 2575 215 0
KM 33-34 2578 2625 +47 +4.7% 2582 2640 62 15
KM 34-35 2625 2565 -60 -6.0% 2566 2619 0 60
KM 35-36 2565 2457 -108 -10.8% 2458 2564 0 108
KM 36-37 2457 2349 -108 -10.8% 2348 2452 1 109
KM 37-38 2349 2453 +105 +10.5% 2349 2452 105 0
KM 38-39 2453 2413 -40 -4.0% 2413 2476 21 61
KM 39-40 2413 2298 -115 -11.5% 2299 2410 0 115
KM 40-41 2298 2214 -84 -8.4% 2217 2297 0 84
KM 41-42 2214 2071 -143 -14.3% 2074 2214 0 143
KM 42-43 2071 1988 -83 -8.3% 1991 2071 0 83
KM 43-43.69 1988 1903 -85 -8.5% 1903 1984 0 1886

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 27.8% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 43.7 km course, corresponding to a finish time of 3h38'29", is estimated to complete this course in 4h39'09". The recalculated average pace (GAP) improves to 6'23"/km (10'17"/mi), making it 1'23"/km (2'14"/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 3h23'55", the estimate is to complete this course in 4h20'33", corresponding to a pace of 5'58"/km (or 9'36"/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 4h11'14" (pace of 5'45"/km or 9'15"/mi) corresponds to a time of 3h16'38" 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"2h11'05"2h47'29"3'50"0'50"6'10"1'20"
3'10"5'06"2h18'22"2h56'48"4'03"0'53"6'31"1'25"
3'20"5'22"2h25'39"3h06'06"4'16"0'56"6'51"1'29"
3'30"5'38"2h32'56"3h15'24"4'28"0'58"7'12"1'34"
3'40"5'54"2h40'13"3h24'43"4'41"1'01"7'32"1'38"
3'50"6'10"2h47'30"3h34'01"4'54"1'04"7'53"1'43"
4'00"6'26"2h54'47"3h43'19"5'07"1'07"8'14"1'47"
4'10"6'42"3h02'04"3h52'38"5'19"1'09"8'34"1'52"
4'20"6'58"3h09'21"4h01'56"5'32"1'12"8'55"1'56"
4'30"7'15"3h16'38"4h11'14"5'45"1'15"9'15"2'01"
4'40"7'31"3h23'55"4h20'33"5'58"1'18"9'36"2'05"
4'50"7'47"3h31'12"4h29'51"6'11"1'21"9'56"2'10"
5'00"8'03"3h38'29"4h39'09"6'23"1'23"10'17"2'14"
5'10"8'19"3h45'46"4h48'28"6'36"1'26"10'37"2'19"
5'20"8'35"3h53'03"4h57'46"6'49"1'29"10'58"2'23"
5'30"8'51"4h00'20"5h07'04"7'02"1'32"11'19"2'27"
5'40"9'07"4h07'37"5h16'23"7'14"1'34"11'39"2'32"
5'50"9'23"4h14'54"5h25'41"7'27"1'37"11'60"2'36"
6'00"9'39"4h22'11"5h34'59"7'40"1'40"12'20"2'41"
6'10"9'55"4h29'28"5h44'18"7'53"1'43"12'41"2'45"
6'20"10'12"4h36'45"5h53'36"8'06"1'46"13'01"2'50"
6'30"10'28"4h44'02"6h02'54"8'18"1'48"13'22"2'54"
6'40"10'44"4h51'18"6h12'13"8'31"1'51"13'43"2'59"
6'50"10'60"4h58'35"6h21'31"8'44"1'54"14'03"3'03"
7'00"11'16"5h05'52"6h30'49"8'57"1'57"14'24"3'08"
7'10"11'32"5h13'09"6h40'08"9'09"1'59"14'44"3'12"
7'20"11'48"5h20'26"6h49'26"9'22"2'02"15'05"3'17"
7'30"12'04"5h27'43"6h58'44"9'35"2'05"15'25"3'21"
7'40"12'20"5h35'00"7h08'03"9'48"2'08"15'46"3'26"
7'50"12'36"5h42'17"7h17'21"10'01"2'11"16'06"3'30"
8'00"12'52"5h49'34"7h26'39"10'13"2'13"16'27"3'35"

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.