Silly STRAVA Racing

[Herr-B]

Don't forget if you've selected the privacy option (not showing home/work/lovers/etc.) then it'll move your start and finish points - adding or subtracting as necessary.

 

[Venod]

Don't forget if you've selected the privacy option (not showing home/work/lovers/etc.) then it'll move your start and finish points - adding or subtracting as necessary.

It doesn't alter the distance cycled it only hides your home location from others if you view the ride yourself it shows the start & finish at the correct location,

 

[Frood42]

You might be fooling yourself. Strava always overestimates my rides. Garmin overestimates massively.

Seems to be working ok for me (using Endomondo and MFP that is), keeping a steady deficit of 500-1000 calories from my TDEE (total daily energy expenditure) has meant I have been losing weight steadily.

I have checked several sources and calculators and they all seem to suggest that Strava is under calculating my burn, but there are so many factors to take into account that I am more than aware that be it my Mio GPS device, the Endomondo website or the Strava website, none will be all that accurate.

 

[VamP]

Seems to be working ok for me (using Endomondo and MFP that is), keeping a steady deficit of 500-1000 calories from my TDEE (total daily energy expenditure) has meant I have been losing weight steadily.

I have checked several sources and calculators and they all seem to suggest that Strava is under calculating my burn, but there are so many factors to take into account that I am more than aware that be it my Mio GPS device, the Endomondo website or the Strava website, none will be all that accurate.

Power meters are accurate, that's how I know Strava overestimates. Only by around 10 - 15 % which is a lot better than the near 100% that Garmin manages. Most calorie calculators overestimate, it's just a fact of life. But then the calorie counting process on the intake side is imperfect too, so it probably balances out in your case.

 

[Rob3rt]

Power meters are accurate, that's how I know Strava overestimates. Only by around 10 - 15 % which is a lot better than the near 100% that Garmin manages. Most calorie calculators overestimate, it's just a fact of life. But then the calorie counting process on the intake side is imperfect too, so it probably balances out in your case.

At measuring kJ and thus kCal delivered to the crank, however this is only a fraction of the kCal burnt. There are some assumptions made regarding the efficiency of the rider which introduces error in the total kCal burn figure. Still a lot closer than other methods though.

I do tend to just take kJ at the crank = Total kCal burnt though.

 

[VamP]

At measuring kJ and thus kCal delivered to the crank, however this is only a fraction of the kCal burnt. There are some assumptions made regarding the efficiency of the rider which introduces error in the total kCal burn figure. Still a lot closer than other methods though.

I do tend to just take kJ at the crank = Total kCal burnt though.

Exactly.

 

[Frood42]

Power meters are accurate, that's how I know Strava overestimates. Only by around 10 - 15 % which is a lot better than the near 100% that Garmin manages. Most calorie calculators overestimate, it's just a fact of life. But then the calorie counting process on the intake side is imperfect too, so it probably balances out in your case.

Power meters are not for me (I like my gadgets, but these seem quite expensive), so I will have to take the less perfect method I currently use, it does the job well enough for my needs (I'm not really a KOM chaser).

 

[musa]

Power meters are getting cheaper as time is going on

 

[Herr-B]

It doesn't alter the distance cycled it only hides your home location from others if you view the ride yourself it shows the start & finish at the correct location,

Ah, you appear to be quite correct. I'd always pinned that as the reason for constant difference between Strava and my Velo7. Maybe it's because sometimes Strava cuts corners, particularly on rab?

 

[gaz]

why is my rating higher than you at 92.97 when you have a lot more kom and podiums is it the segment count

It's based on positional score. So 1st out of 2 is not worth as much as 2nd out of 100.

 

[gam001]

Hee hee, haven't bothered for ages since it changed, don't like the look of it now, and it's more difficult to find my friends/rivals/stalkers with the new layout

Take him...

 

[Rob3rt]

Power meters are not for me (I like my gadgets, but these seem quite expensive), so I will have to take the less perfect method I currently use, it does the job well enough for my needs (I'm not really a KOM chaser).

I have found that from power meter data that for me a 30-40 kCal per mile estimate is sufficiently close. See how such an estimate compares to your Strava data maybe.

 

[Frood42]

I have found that from power meter data that for me a 30-40 kCal per mile estimate is sufficiently close. See how such an estimate compares to your Strava data maybe.

Ok, Strava gave me 979 calories for doing 31.1 miles (which is close to your measures).

Strava 979kcal
Endomondo 2377kcal (rather high to me, seems to not be taking stopping at lights etc into account)
GPS 1851kcal (a lot of the online calculators are close to this)

GPS:
Active time: 2hrs 6mins 40secs
Avg Speed: 14.3mph
Avg HR: 152

Weight: 193lbs
Height: 5ft 8in


Things is, if I go by the GPS middle reading then I seem to lose weight fine (assuming I don't get an attack of the munchies the day after a long 60-70 mile ride).
Endomondo doesn't take into account what I would have burnt anyway had I not cycled, or that is how it seems, they have a diagram on this on their website somewhere.

 

[uclown2002]

Power meters are accurate, that's how I know Strava overestimates. Only by around 10 - 15 % which is a lot better than the near 100% that Garmin manages. Most calorie calculators overestimate, it's just a fact of life. But then the calorie counting process on the intake side is imperfect too, so it probably balances out in your case.

What garmin device are you using?

I did 102 miles today in 5hr 34 mins with hrm.

Strava 4082 kcal - similar to a few other online calculators I checked
Garmin FR70 (cycle mode) 4500 kcal
Garmin Edge (800) 2487 Kcal

I know the edge uses a different algorithm but I find it hard to believe that it over-estimates in my case. I can certainly believe the other two grossly exaggerate though.

 

[Stonechat]

Managed to improve mine to 90.45.

Top pos score is 99.83 (1st out of 595)

Being a bit of a newbie my Veloviewer score is 52.27
Don't even know what it means