Strava

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  • Don't you get some sort of notification if you get a KOM? If so they had a chance to correct it immediately when that popped up

  • I still have my Tower Bridge KOM till an ebike takes it

  • Flag fuck out of it.

  • Turns out Strava cannot distinguish virtual rides from real ones, so this guy on the turbo in his shed is still faster than Pogacar up this Strade Bianche segment as long as he doesn't label his ride as 'virtual'. Completely useless.

    https://www.strava.com/activities/1434327751#35673828243

    https://support.strava.com/hc/en-us/articles/216919587-Virtual-Trainer-Activities-on-Strava?mobile_site=true


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  • Had to flag about 5 for various reasons (almost all of them at 2min/km or faster) before I found the first one that looks genuine.

    For big climbs like ^ it's just a game for some people, they purposely put up fast times (either from virtual or just faked) just to be top of the leaderboard for a while.

    Playing whack-a-mole on them is boring as they just keep popping up. At least that's not a problem on some random shitty short local segment in SW London.

    Turns out Strava cannot distinguish virtual rides from real ones

    They probably can semi-reliably, but it's easier to just leave it to the great unwashed masses to do that for them.

  • I don't really use Strava for calorie counting, but I noticed a weird discrepancy around it. I recently went on 2 quite similar rides (50km, ~300m of climb, about 125 minutes). The first I tracked with a Garmin Edge 705; the second I tracked with a new phone. The first ride shows as having burned 2,085 calories; the second shows as 1,011 calories.

    What could be causing that massive discrepancy?

  • easier to just leave it to the great unwashed masses to do that for them

    this exactly. we'll just keep on flagging then...

  • Were both measuring HR or just one?

  • Calories guesstimated by different devices. They're gonna be using different equations. Were they both off HR? Do you have weight accurate in both? Basically I would ignore any calorie estimations that aren't based off a PM.

  • Is this Kcal or KJ?
    I did 115km yesterday and I'm only getting about 500kcal

  • That doesn't sound right. I know I'm big but I'd do 3-500kcal in 30min. I'd expect 2500-3000 for 100k.

  • It says 2,329kJ. A friend I rode with has roughly the same on his. Both with measured HR and he has a PM
    Kcal roughly 0.24 x KJ I believe

    Edit: I see now it does tell me calories actually
    Calories: 3,361

    I wonder how that amount of work done can turn into that number of calories burned then

  • There's a rough 25% efficiency for human work and this is conveniently the conversion of kj to kcal so if a PM reports 2000kj you can basically say that's 2000 cals. Something like that. I basically eyeball the kj number in WKO and that's my cals used.

  • Neither were based on HR. My profile on Strava is setup with my sex, DoB, max heart rate and weight (80kg). The same data is stored on my Garmin with the exception of DoB. I actually recorded the latest ride on both devices (via the Strava app on my new phone) to allow me to compare. The distances match to within 100m (over 50km), average speeds are slightly different (24.2km/h on the phone, 23.7km/h on the Garmin), which seems to be due a discrepancy in the total moving time, which I'm guessing is due to different auto-pause algorithms.

    @PhilDAS the energy expended is returned in "Calories", which I think is the non-technical way that KCal get reported. When I look at the activity on my Garmin it says 1978Cal for that activity, which is pretty consistent with all the previous rides of this route (i.e., my history on Strava) recorded through it. So I'm guessing that when the Garmin is used it calculates the energy expended itself and this value gets imported into Strava with the other ride info (which I do by transferring the file from Garmin to laptop and then uploading to Strava); the new value of 1,011 calories, on the other hand, appears to be the result of Strava's own calculation. What I can't work out is why there's such a massive discrepancy. Annoyingly cycling calorie calculators like this seem to come up with a value almost exactly halfway in between (1,500 Calories).

  • That's the problem with estimates. It totally depends on what algorithm they use. They're next to useless.

  • Interestingly, I get nearly the exact same calories using that calculator as the one on my strava from yesterday's ride though I'm not sure if it's strava or Wahoo doing the calc

    Strava says 3361, this says 3386


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  • So I can confidently say that I burned "some" calories out on that ride.

  • Yep.

    If you were alive you burned some calories.
    If you were alive and moving, you burned some more calories.

    These two statements are fact. :)

  • The crap algorithms device manufacturers use to calculate calorie consumption.

    When I was working for one, the algorithm team would happily admit that the calorie calculation was basically guess work.

  • ...but presumably better if you do actually put HR data into it?

  • So didn't know that spam and bot accounts giving kudos was a thing - and apologies if this is already covered elsewhere in the thread... just got kudos from a spam account with "enticing(!)" profile pic and a dodgy link as the profile detail... is nowhere safe from this shit these days?!

  • Is there a way to remove the association of a ride from a specific segment without having to flag the whole ride?

    This oftned happens when you have offroad segments on trails very close to a road, but the two efforts are considerably different, but because there are trees/GPS glitches, the track covers enough of the segments for Strava to associate it.

    Not massively bothered, just curious

  • I've only seen whole ride flagging option.

  • You can hide the segment so you don't have see it again, but that's not quite what you're asking for.

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