Wahoo and Strava summary diff...
08-23-20, 02:41 PM
#1
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Wahoo and Strava summary diff...
Anybody know why the summaries are dif between what my Wahoo says and what Strava says?
08-23-20, 04:57 PM
#2
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Strava and many other sites derive the accumulated totals from the track data in the log file you upload. I think some of those accumulated totals of your device are in the log file, but I don't know for certain. But many sites don't use them and just add up the track point data.
Log files at best probably only use 1 second recording intervals. Some devices the time between data points logged can be much longer. The device probably accumulates more often than that. So some differences can be from just that alone.
It's not a bad thing. It's just a choice they make for many reasons that if we knew them all you'd find plenty of us on different sides.
Log files at best probably only use 1 second recording intervals. Some devices the time between data points logged can be much longer. The device probably accumulates more often than that. So some differences can be from just that alone.
It's not a bad thing. It's just a choice they make for many reasons that if we knew them all you'd find plenty of us on different sides.
Last edited by Iride01; 08-23-20 at 05:01 PM.
08-23-20, 06:45 PM
#3
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Thread Starter
Strava and many other sites derive the accumulated totals from the track data in the log file you upload. I think some of those accumulated totals of your device are in the log file, but I don't know for certain. But many sites don't use them and just add up the track point data.
Log files at best probably only use 1 second recording intervals. Some devices the time between data points logged can be much longer. The device probably accumulates more often than that. So some differences can be from just that alone.
It's not a bad thing. It's just a choice they make for many reasons that if we knew them all you'd find plenty of us on different sides.
Log files at best probably only use 1 second recording intervals. Some devices the time between data points logged can be much longer. The device probably accumulates more often than that. So some differences can be from just that alone.
It's not a bad thing. It's just a choice they make for many reasons that if we knew them all you'd find plenty of us on different sides.
08-23-20, 07:04 PM
#4
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Sure an average is an average. However you'll get different answers from using different methods to determine them because you are using different data. With out knowing how each is determined by both the website and on your device, expecting them to agree is not something I'd expect. As long as they are in the ballpark, I'm happy.
Which average is bothering you? Regardless, all they are telling you is that you need to ride more. <grin>
https://support.strava.com/hc/en-us/...e-Calculations
https://support.strava.com/hc/en-us/...lculates-Power
Which average is bothering you? Regardless, all they are telling you is that you need to ride more. <grin>
https://support.strava.com/hc/en-us/...e-Calculations
https://support.strava.com/hc/en-us/...lculates-Power
08-23-20, 07:28 PM
#5
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Neither really bothers me. I literally just got this power meter. It's only my second ride with it. I just wonder why Strava's summary is different. The power in particular is much dif. Those FAQs don't actually answer my question.
08-23-20, 08:15 PM
#6
Non omnino gravis
My guess is that the Wahoo is not counting zeros in the power calculation, and Strava always does. Distance and speed get retouched by a Strava algorithm.
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08-23-20, 09:45 PM
#7
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Hey, I ride enough. It is really hot out. Plus... long rides are overrated anyway.
Neither really bothers me. I literally just got this power meter. It's only my second ride with it. I just wonder why Strava's summary is different. The power in particular is much dif. Those FAQs don't actually answer my question.
Neither really bothers me. I literally just got this power meter. It's only my second ride with it. I just wonder why Strava's summary is different. The power in particular is much dif. Those FAQs don't actually answer my question.
08-23-20, 10:14 PM
#8
Non omnino gravis
I would have to see extended stats on the activity to be able to tell. The power numbers shown on the Wahoo would have me expect a significantly higher average speed. Strava seems about right.
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08-23-20, 10:26 PM
#9
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I started a thread about how Strava estimates were always lower than my Wahoo Kickr Snap for what seemed like the same effort. You responded to that thread, actually (appreciate it). Before, Strava had never once given me avg watts > 200 for an entire ride, but then I added a bike and it recalculated giving me a consistent average in or around 200w total for a ride. Then I got a power meter, this week in fact, and I've used it twice. The PM seems to agree w/ my Kickr Snap and Strava's estimates (after a bike is added). Here's the other thread.
https://www.bikeforums.net/training-nutrition/1209826-strava-estimated-power-vs-indoor-power.html
Why the hell would this meter lie? It's advertised as accurate to 1 percent. It seems to me that whatever is going straight to my Wahoo from my PM would be most accurate.
Check out my activity on Strava: https://strava.app.link/ZZp89MiCc9
Last edited by showlow; 08-23-20 at 11:26 PM.
08-24-20, 12:15 AM
#10
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This might be it... The function of including zero was not turned on. That would def inflate avg on the Wahoo, that would be recalculated dif once the raw data was uploaded to Strava.
08-24-20, 12:02 PM
#11
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Now I'm getting a little pissed. It was 16 miles of dirt/mixed climbing. I bought this power meter so I would know how much power I am making with no doubts.
I started a thread about how Strava estimates were always lower than my Wahoo Kickr Snap for what seemed like the same effort. You responded to that thread, actually (appreciate it). Before, Strava had never once given me avg watts > 200 for an entire ride, but then I added a bike and it recalculated giving me a consistent average in or around 200w total for a ride. Then I got a power meter, this week in fact, and I've used it twice. The PM seems to agree w/ my Kickr Snap and Strava's estimates (after a bike is added). Here's the other thread.
https://www.bikeforums.net/training-...oor-power.html
Why the hell would this meter lie? It's advertised as accurate to 1 percent. It seems to me that whatever is going straight to my Wahoo from my PM would be most accurate.
Check out my activity on Strava: https://strava.app.link/ZZp89MiCc9
I started a thread about how Strava estimates were always lower than my Wahoo Kickr Snap for what seemed like the same effort. You responded to that thread, actually (appreciate it). Before, Strava had never once given me avg watts > 200 for an entire ride, but then I added a bike and it recalculated giving me a consistent average in or around 200w total for a ride. Then I got a power meter, this week in fact, and I've used it twice. The PM seems to agree w/ my Kickr Snap and Strava's estimates (after a bike is added). Here's the other thread.
https://www.bikeforums.net/training-...oor-power.html
Why the hell would this meter lie? It's advertised as accurate to 1 percent. It seems to me that whatever is going straight to my Wahoo from my PM would be most accurate.
Check out my activity on Strava: https://strava.app.link/ZZp89MiCc9
How would it change any of your training or whether or not you can place what ever position you can place in a competition whether formal or impromptu?
Don't let a bean counter mentality keep you frustrated that all the columns don't add up for you. Just go ride some more.
08-25-20, 11:49 AM
#12
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So use the one you think is the most accurate.
How would it change any of your training or whether or not you can place what ever position you can place in a competition whether formal or impromptu?
Don't let a bean counter mentality keep you frustrated that all the columns don't add up for you. Just go ride some more.
How would it change any of your training or whether or not you can place what ever position you can place in a competition whether formal or impromptu?
Don't let a bean counter mentality keep you frustrated that all the columns don't add up for you. Just go ride some more.
That said, I spent the money and I want the stuff to work. I fixed it. My Wahoo was excluding zeros in the avg. I turned zeros off for a short ride last night and got a much more realistic avg of 211 on both my Wahoo and in Strava, which now agree. Prob solved.
Also, fwiw, looking down at my power numbers is actually kinda fun. It's like having a tachometer or something. I am learning a lot about myself from the numbers.
