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2024 Iznik Ultra Marathon, course map and altimetry

2024 Iznik Ultra Marathon: route, altimetry, gpx

Note: "2024 Iznik Ultra Marathon" is NOT organized by goandrace.com

2024 Iznik Ultra Marathon course map. Lenght: 25 km (15.5 mi).

25 km (15.5 mi) course map of the event "2024 Iznik Ultra Marathon" in Bursa (Friday, April 19, 2024). Explore the route!

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

2024 Iznik Ultra Marathon: route altimetric information


2024 Iznik Ultra Marathon: GNR-GAP index (v 1.0, experimental, see more)

2024 Iznik Ultra Marathon: interactive route

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

2024 Iznik Ultra Marathon: altimetry graph

2024 Iznik Ultra Marathon: slope graph

2024 Iznik Ultra Marathon: percentage distribution of slope

2024 Iznik Ultra 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 0.0082-1 578 591 +13 +1.3% 578 601 23 10
KM 1-2 591 601 +10 +1.0% 585 601 13 3
KM 2-3 601 609 +8 +0.8% 601 612 11 3
KM 3-4 609 577 -32 -3.2% 577 608 0 32
KM 4-5 577 544 -33 -3.3% 535 577 9 42
KM 5-6 544 529 -15 -1.5% 519 556 22 37
KM 6-7 529 526 -3 -0.3% 502 530 24 27
KM 7-8 526 603 +77 +7.7% 526 605 77 0
KM 8-9 603 586 -18 -1.8% 584 605 4 21
KM 9-10 586 543 -43 -4.3% 543 585 0 43
KM 10-11 543 527 -16 -1.6% 527 550 7 23
KM 11-12 527 481 -46 -4.6% 474 527 5 51
KM 12-13 481 381 -100 -10.0% 386 481 0 100
KM 13-14 381 264 -117 -11.7% 250 381 14 131
KM 14-15 264 333 +69 +6.9% 264 338 74 5
KM 15-16 333 208 -125 -12.5% 210 333 0 125
KM 16-17 208 157 -51 -5.1% 138 208 14 65
KM 17-18 157 155 -3 -0.3% 146 159 11 14
KM 18-19 155 151 -4 -0.4% 150 156 5 9
KM 19-20 151 154 +3 +0.3% 151 157 9 6
KM 20-21 154 125 -29 -2.9% 125 157 2 31
KM 21-22 125 113 -12 -1.2% 112 124 1 13
KM 22-23 113 110 -3 -0.3% 110 114 2 5
KM 23-24 110 102 -8 -0.8% 102 110 0 8
KM 24-24.97 102 102 0 0% 101 103 17 105

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 4.5% slower.


For example, a runner who maintains a pace of 5'00"/km (8'03"/mi) on a flat 24.6 km course, corresponding to a finish time of 2h02'49", is estimated to complete this course in 2h08'22". The recalculated average pace (GAP) improves to 5'14"/km (8'25"/mi), making it 0'14"/km (0'22"/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 1h54'38", the estimate is to complete this course in 1h59'49", corresponding to a pace of 4'53"/km (or 7'51"/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 1h55'32" (pace of 4'42"/km or 7'34"/mi) corresponds to a time of 1h50'32" 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"1h13'41"1h17'01"3'08"0'08"5'03"0'13"
3'10"5'06"1h17'47"1h21'18"3'19"0'09"5'20"0'14"
3'20"5'22"1h21'53"1h25'35"3'29"0'09"5'36"0'15"
3'30"5'38"1h25'58"1h29'51"3'39"0'09"5'53"0'15"
3'40"5'54"1h30'04"1h34'08"3'50"0'10"6'10"0'16"
3'50"6'10"1h34'10"1h38'25"4'00"0'10"6'27"0'17"
4'00"6'26"1h38'15"1h42'42"4'11"0'11"6'44"0'17"
4'10"6'42"1h42'21"1h46'58"4'21"0'11"7'01"0'18"
4'20"6'58"1h46'27"1h51'15"4'32"0'12"7'17"0'19"
4'30"7'15"1h50'32"1h55'32"4'42"0'12"7'34"0'20"
4'40"7'31"1h54'38"1h59'49"4'53"0'13"7'51"0'20"
4'50"7'47"1h58'44"2h04'05"5'03"0'13"8'08"0'21"
5'00"8'03"2h02'49"2h08'22"5'14"0'14"8'25"0'22"
5'10"8'19"2h06'55"2h12'39"5'24"0'14"8'41"0'23"
5'20"8'35"2h11'00"2h16'56"5'34"0'14"8'58"0'23"
5'30"8'51"2h15'06"2h21'12"5'45"0'15"9'15"0'24"
5'40"9'07"2h19'12"2h25'29"5'55"0'15"9'32"0'25"
5'50"9'23"2h23'17"2h29'46"6'06"0'16"9'49"0'25"
6'00"9'39"2h27'23"2h34'03"6'16"0'16"10'06"0'26"
6'10"9'55"2h31'29"2h38'19"6'27"0'17"10'22"0'27"
6'20"10'12"2h35'34"2h42'36"6'37"0'17"10'39"0'28"
6'30"10'28"2h39'40"2h46'53"6'48"0'18"10'56"0'28"
6'40"10'44"2h43'46"2h51'10"6'58"0'18"11'13"0'29"
6'50"10'60"2h47'51"2h55'26"7'09"0'19"11'30"0'30"
7'00"11'16"2h51'57"2h59'43"7'19"0'19"11'46"0'31"
7'10"11'32"2h56'03"3h04'00"7'29"0'19"12'03"0'31"
7'20"11'48"3h00'08"3h08'17"7'40"0'20"12'20"0'32"
7'30"12'04"3h04'14"3h12'33"7'50"0'20"12'37"0'33"
7'40"12'20"3h08'20"3h16'50"8'01"0'21"12'54"0'33"
7'50"12'36"3h12'25"3h21'07"8'11"0'21"13'11"0'34"
8'00"12'52"3h16'31"3h25'24"8'22"0'22"13'27"0'35"

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.