Number of downhill runs in alpine skiing

surfboomerang · 15 Mar 2021, 04:50

@freeheeler Then why is Stackoverflow so popular?

MdzOtt · 22 Dec 2022, 02:16

I am resuscitating this old topic - the new season, some of the same problems.

I started skiing again and the number of runs is still a problem. It has improved dramatically (SA adds a couple of runs, and they are quite legitimate (e.g., a short run to the chairlift).

The latest issue is how the activity is passed from Suunto to Strava. I thought it might be a Strava issue, but their response is that “if the platform with which the activity was recorded passes a number of runs, Strava will take it at its face value. If there is no such number, Strava will calculate it internally”. So it seems that Suunto is counting the runs in a strange way.

For example, the last time, SA reported 21 runs (https://www.sports-tracker.com/workout/marekdziedzic/63a0950e27a4974d2657ebe4), but Strava shows 43 runs. It seems that Suunto is passing some other number (some other variable) as the number of runs.

As we discussed before, this is not a huge issue, but possibly, this could be fixed. And as mentioned before, the Ambit 3 (and 2) reported these numbers correctly.

Btw. the total descent is much closer now, so I am not complaining.

northeast_trekker · 22 Dec 2022, 17:02

@MdzOtt seems odd that SA would be able to know the correct run count but then Suunto would be storing a bogus number in the “supported” run count field - seems like this number includes the auto laps and how those segment the activity up artifically. I wish that Strava either allowed user to “correct” lap count like you can with elevation and override with their calculated run count with an algorithm based value.

Umer Javed · 22 Dec 2022, 18:42

@MdzOtt said in Number of downhill runs in alpine skiing:

…“if the platform with which the activity was recorded passes a number of runs, Strava will take it at its face value. If there is no such number, Strava will calculate it internally”. So it seems that Suunto is counting the runs in a strange way.

Have you tried looking at the GPX or FIT file, do you note any count of runs written into it?

MdzOtt · 24 Dec 2022, 04:35

@Umer-Javed I haven’t tried. But I will and report back.

MdzOtt · 24 Dec 2022, 04:40

@Umer-Javed Interestingly, if I export from Sport-Tracker using GPX, Strava reports the same (correct) number of runs as Sport Tracker. The same happens if I “Export GPX workout” from SA (which seems logical, as it seems that this is the same file). However, if I “Download FIT file” from SA and upload it to Strava, the double number of runs shows up.
I think that Suunto is passing the FIT file to Strava (and the problem is within the FIT file).
Unfortunately, I have no tool to look inside the FIT file to see what information is there.

Umer Javed · 24 Dec 2022, 07:19

@MdzOtt said in Number of downhill runs in alpine skiing:

Unfortunately, I have no tool to look inside the FIT file to see what information is there.

If you’re interested in diving deeper, you may try the https://runalyze.com/tool/fit-viewer you could upload the .fit and see if you can find a field for runs and what the count is from the file from SA.

MdzOtt · 27 Dec 2022, 03:47

@Umer-Javed thanks!!

mihai_omega · 28 Feb 2024, 08:10

I revice this topic because I have the same issue between Suunto and Strava.

My Suunto App displays 18 runs, while the Strava app displays 37 runs. After analyzing the FIT file from Suunto App I discovered the issue. At the end of the file there is a statistics for the entire activity including number of laps = 37. This is the source used by Strava to count the runs. If this field is missing, than Strava calculates the number of runs by itself.

Suunto developers, please set the correct number of laps/runs into the FIT file so that Strava can read the correct value. Thank you!

==
= TYPE=0 NAME=session NUMBER=18
--- timestamp=1077629177=2024-02-23T13:26:17Z
--- start_time=1077612424=2024-02-23T08:47:04Z
--- event=8=session
--- event_type=1=stop
--- sport=13=alpine_skiing
--- sub_sport=9=downhill
--- first_lap_index=0=0
***--- num_laps=37=37***
--- min_heart_rate=45=45 bpm
--- avg_heart_rate=106=106 bpm
--- max_heart_rate=166=166 bpm
--- avg_speed=2191=7.888 km/h
--- max_speed=14540=52.344 km/h
--- total_calories=1364=1364 kcal
--- total_timer_time=16752340=16752.340 s
--- total_elapsed_time=16752332=16752.332 s
--- total_distance=3670800=36708.00 m
--- total_ascent=3684=3684 m
--- total_descent=3688=3688 m
--- max_altitude=12954=2090.8 m
--- min_altitude=9740=1448.0 m
--- training_stress_score=1903=190.3 tss
--- total_cycles=2926=2926 cycles
--- avg_temperature=17=17 deg.C
--- max_temperature=25=25 deg.C
--- avg_cadence=58=58 rpm
--- max_cadence=254=254 rpm
--- total_training_effect=23=2.3
--- time_in_hr_zone=14688130=14688.130 s,1182.209 s,645.201 s,173.892 s,61.085 s
--- pool_length_unit=0=metric
--- pool_length=2500=25.00 m
--- 0_2_recovery_time=106140=106140
--- 0_4_peak_epoc=133=13.3
==

Lawrence Kuracina · 3 Apr 2025, 03:21

I have a similar problem using the Vertical. The Suunto App shows for Alpine Skiing that I did 13 runs (which is the same as my SkiTracks App)but on Strava it shows 26 runs. I have not looked at the FIT file. I see nothing in the Suunto App with 26 in it.