Results 1 to 22 of 22
  1. #1
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031

    Reason I'll never trust Strava "race/segment" times....

    Cause this happens... LOLOLOLOL
    I was FLYING!!!

    Don't bother with Strava's little posted race times, most of the good ones are really just GPS/hardware/software errors!!!
    Attached Thumbnails Attached Thumbnails Reason I'll never trust Strava "race/segment" times....-195milesanhour.jpg  

    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  2. #2
    mtbr member
    Reputation: plantdude's Avatar
    Join Date
    Dec 2007
    Posts
    603
    Times like yours are the ones I like to flag.


    Sent from a tiny keyboard

  3. #3
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    let me guess, cell phone?

    strava is supposed to be a little diversionary fun, anyway. it's not serious, no matter what the stravatards do.

  4. #4
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031
    Quote Originally Posted by NateHawk View Post
    let me guess, cell phone?

    strava is supposed to be a little diversionary fun, anyway. it's not serious, no matter what the stravatards do.
    yup...


    heeeeeeeheeee ya my point,,, know a few that take it all serious and HAVE to have the best time or what ever on a segment... dumbasses
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  5. #5
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    yeah, I haven't seen bad points like that from a dedicated GPS in a number of years.

    as for people taking it too seriously...yeah, bound to happen. there's a few guys on my local trails who use Strava, but I haven't noticed any of that overcompetitiveness from them. I think most of the segments have different guys as the KOM, too. I also think I'm the only guy using a dedicated GPS receiver. I think everyone else is using a phone of some kind or another.

    there are some trails farther away that I ride somewhat infrequently that are used as a race course (for actual closed course races) and so there are guys out there who train on the course, so I'm sure there are some overcompetitive types who ride there.

  6. #6
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031
    Quote Originally Posted by NateHawk View Post
    yeah, I haven't seen bad points like that from a dedicated GPS in a number of years.................
    ya, I have NEVER gotten THAT far off on my phone,.. I have it strapped the the shoulder strap on my pack so it's not blocked or anything (like in a pocket or inside the pack) I've gotten odd-off readings but that's one for the record books,... as I was actually sitting still playing with my Contour cam at that point... LOLOL actually I think that's the cause, I stopped for a bit, the GPS software auto paused, and it took a bit before it realized I was moving again and just auto filled in the difference in distance.. still pretty funny
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  7. #7
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    you have a couple other speed spikes in your graph that don't really seem to correspond to any downhill segments, but I can't really tell what scale the speed graph is on so it's hard to say.

  8. #8
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031
    Quote Originally Posted by NateHawk View Post
    you have a couple other speed spikes in your graph that don't really seem to correspond to any downhill segments, but I can't really tell what scale the speed graph is on so it's hard to say.
    well you can check it out...

    Back to the old haunt, Rocky Neck - Walking trip | EveryTrail

    if you move the mouse along the graph it'll give ya read outs... only other spike that doesn't seem right is just a bit after that where it comes up saying 43 miles an hour... umm not.. actually, again I think it was a stop point as there are multiple trees down along that section still from the hurricane ... Elevations seem fine also except for those 2 point also..
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  9. #9
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    503
    i just raced a friend on an uphill, neck and neck to the finish he beat me by 1 bike length

    his strava time 1 minute 9 seconds

    my strava time, 1 minute 34 seconds

    awesome accuracy

  10. #10
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031
    Quote Originally Posted by jasonjm View Post
    i just raced a friend on an uphill, neck and neck to the finish he beat me by 1 bike length

    his strava time 1 minute 9 seconds

    my strava time, 1 minute 34 seconds

    awesome accuracy
    really? 25 secs to do one bike length? I'd fall over going that slow
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  11. #11
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    503
    he had an iphone, Ive heard everything really is easier on an iphone, I guess this proves it.

    I think he just balanced the iphone on one of the pedals, and then his feet over the handlebars, and bam, he made the ascent in pretty good time.

  12. #12
    Trail Tire TV on blogger
    Reputation: thomllama's Avatar
    Join Date
    Oct 2007
    Posts
    4,031
    Quote Originally Posted by jasonjm View Post
    he had an iphone, Ive heard everything really is easier on an iphone, I guess this proves it.

    I think he just balanced the iphone on one of the pedals, and then his feet over the handlebars, and bam, he made the ascent in pretty good time.
    if that's supposed to be humor.. I don't get it...
    Going to try and bring Trail Tire TV back. go take a look... http://trailtiretv.blogspot.com/

  13. #13
    Fat-tired Roadie
    Reputation: AndrwSwitch's Avatar
    Join Date
    Nov 2007
    Posts
    13,897
    I flag my own when I do that.

    Actually, I find I like Strava a bit better than Garmin Connect for trying to pull some meaning out of plots. Maybe I'll have to get super-hardcore and find some more hard core software, now that I'm finally using a HRM.
    "Don't buy upgrades; ride up grades." -Eddy Merckx

  14. #14
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    503
    Quote Originally Posted by thomllama View Post
    if that's supposed to be humor.. I don't get it...
    do you by chance have an iphone?

  15. #15
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    Quote Originally Posted by AndrwSwitch View Post
    I flag my own when I do that.

    Actually, I find I like Strava a bit better than Garmin Connect for trying to pull some meaning out of plots. Maybe I'll have to get super-hardcore and find some more hard core software, now that I'm finally using a HRM.
    It doesn't get much more hardcore than Training Peaks.

  16. #16
    mtbr member
    Reputation:
    Join Date
    Jun 2006
    Posts
    164
    This has happened to me on several occasions, but I've always thought that it's due to my iphone temporarily losing connection. When it regains the GPS connection, strava has to interpolate speed from the last point before connection was lost to the point where it was regained. I've found that the segment time is still good as long as you have a GPS connection at the start/finish points.

  17. #17
    Fat-tired Roadie
    Reputation: AndrwSwitch's Avatar
    Join Date
    Nov 2007
    Posts
    13,897
    Just re-looked at Training Peaks. Yeow. Way too many things behind a paywall.

    Might just to teach Excel to strip the extraneous tags off a .tcx. It can almost do it already.
    "Don't buy upgrades; ride up grades." -Eddy Merckx

  18. #18
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    Quote Originally Posted by skiing9689 View Post
    This has happened to me on several occasions, but I've always thought that it's due to my iphone temporarily losing connection. When it regains the GPS connection, strava has to interpolate speed from the last point before connection was lost to the point where it was regained. I've found that the segment time is still good as long as you have a GPS connection at the start/finish points.
    No it is not a signal drop problem. It is the result of an inaccurate point recorded by the gps in a place where the signal reception is poor. You can delete outliers such as this and clean up the track manually if you can find them.

  19. #19
    Rep Power: Infinity
    Reputation: NateHawk's Avatar
    Join Date
    Dec 2003
    Posts
    12,044
    Quote Originally Posted by AndrwSwitch View Post
    Just re-looked at Training Peaks. Yeow. Way too many things behind a paywall.

    Might just to teach Excel to strip the extraneous tags off a .tcx. It can almost do it already.
    If you are serious about that kind of analysis, I think it's worth it. I would rather pay for the service than be buried in ads that get in the way

  20. #20
    mtbr member
    Reputation:
    Join Date
    Apr 2009
    Posts
    12
    This is quite normal situation. You can't imagine how bad data ppl are sending in gps files to our service. Strava is no exception but on much bigger scale. Second thing to consider is very low quality gps receivers in smartphones.

  21. #21
    sheep in FOX clothing
    Reputation: ghettocruiser's Avatar
    Join Date
    Jun 2008
    Posts
    1,126
    Quote Originally Posted by jasonjm View Post
    awesome accuracy
    Indeed, I've had 10-second Strava segment gaps appear among two riders who rode the whole climb side-by-side, both using Garmins. And that was on a paved road.

    If Garmin units are not set for 1-second recording, it's almost as bad as with a smart phone.

    There are a couple of on-line tools, including veloviewer, which can do a second opinion of a strava leaderboard to try and identify these mess-ups.

    I checked all the hotly-contested climbs around here, and Strava seems to have everyone in the top ten within a second of there real time. But that may be just dumb luck.

  22. #22
    mtbr member
    Reputation:
    Join Date
    May 2011
    Posts
    503
    I gopro some of my shorter runs and use strava

    obviously its easy to see exact time on the gorpo as i can look at the clock when I enter the trail and when I exit

    on a short trail such as 55 seconds to 1 minute 05 seconds, the strava time is pretty much ALWAYS off by at least 3 seconds, up to 8 seconds, that is faster or slower - its random.

    definitely a fun tool, but strava is not to be taken seriously.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •