Does ZwiftPower take into account the weight of a rider when disqualifying riders for their power output?
As a heavy rider I typically have higher watts than others but about the same w/kg. I get disqualified while riders with higher w/kg (but lower watts) don’t get disqualified in the same ride. Trying to understand why this happens
Yes but keep in mind that a race organizer can put any arbitrary text in the DQ code so they can have their own version of a 20MIN DQ based on whatever criteria they choose to apply.
As for why it happens, it’s typically caused by a very inaccurate trainer or equipment malfunction. Since it’s happening to you regularly, you probably need to think about the equipment you are using, unless you are a person with professional level power.
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The W/kg ratio is not linear to infinity.
Heavy riders freq produce more watts but not all heavy riders do so.
There is also an individual max power output.
So, believing a rider should be able to produce a certain power based on weight is inaccurate.
Curiously, looking up your profile, you got the 20MIN flag on Big Spin events. I didn’t think Ride events were subject to ZP DQs? Did you get your free spin anyway?
what trainer are you using? 530 watts for 20 minutes is crazy.
Moped mounted on a smart trainer!?
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good candidate for the gong show
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They didn’t used to be DQ, that happened later lol but yes I still got the spins. Jersey first two times then the cap
Simply put, there is a 99.9% chance you are not producing 500w for 20 mins.
Ive left the .1% in case you are Ganna or Kungs long lost unknown brother.
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Looks like maybe it can be either W/kg or raw Watts if this info is still current. @DejanPresen probably knows.
@Egon_Rosqvist if you would like to stop getting removed from results, tell us about your trainer and you will probably get some useful advice. If it’s not a well known reputable smart trainer or backed up by other quality power measures, the DQs will probably keep coming.
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Are DQs based on raw watts or w/kg? His 509w 20m, while obviously very high, is still 4.4 w/kg which maybe isn’t that insane.
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All the 20 mins tags in here are from +500w efforts for 20.
I am putting 2+2 together but seems reasonable from a quick glance
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Gymstick gb8.0, sadly don’t have money for both a bike and trainer so this was the next best to get me riding again 
530 watts is about 4.3-4.4 w/kg, I see others doing more than that for longer than 20 minutes
500 watts with my weight of 116kg is “only” 4.3 w/kg and I see others doing higher w/kg for longer 
I have no idea how to equate raw watts reasonability versus w/kg, but the below chart indicates that the bottom 10% from Pros for 20m, is about 1 w/kg higher than what the OP did (ignoring the top 10% at 6.59 w/kg)
this bike is not considered “accurate” and doesn’t actually measure power, it is just estimating… and likely way off.
https://www.gymstick.com/gb-8-0-exercise-bike.html
You should not use this for legitimate racing on Zwift.
I only ride for health and fun, just wondering why my rides get DQed when others ride at a higher w/kg but it’s probably because of the bike then
they may have higher w/kg but what are their raw watts? Only world champion level TT specialists have over a 500 watt FTP. It is 100% because of the “bike”
Watts don’t scale 1 to 1 with bodyweight.
it will be your equipment, if if doesn’t have a power meter it you’ll be classed as a zpower rider, these are generally dq’d due to inaccuracy
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