Remaining race distance inaccurate

For the past several months I’ve noticed that the remaining distance field displayed during races is inaccurate - it is consistently low, by about 10% I’d estimate - so on a 20-mile race, the initial distance shown is a couple miles too low. As the race progresses, the difference between actual remaining distance and the displayed field gets proportionally smaller. I’m puzzled this should be the case: if Zwift software knows anything exactly, it should be the distance along the race course, which is not affected by rider-specific settings. I didn’t notice this listed in the “known issues”.

Are these similar issues?: https://forums.zwift.com/search?q=Remaining%20race%20distance

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Similar perhaps in that they generally pertain to the remaining distance. But no, this problem has not been reported as far as I can tell.

Agree.
The issue is so persistent, that it’s no longer surprise anyone during the rides.
Same thing with the time rides. For the ride of 90 minutes, the first 30 minutes are shown as 60 minutes.

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I recorded an example of this in my race just now. Three screenshots: first just after passing the start/finish line for the first time after a lead-in of 1.4 miles, showing a distance to finish of 19.8 miles, suggesting a total distance for race of 21.2 miles. Second one just after passing the mid-point (start-finish line again), now indicating a total of 12.0+9.9=21.9 miles. Final one just after crossing finish and ending race, showing total distance completed of 22.7 miles. So over the course of the race, the distance got longer by about 1.5 miles. I think the effect is stronger on races that do more shorter laps, compared to this one that has just two longer laps, but I don’t know that for sure.
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During stage 2 I’ve told this to Eric Min. This is a very annoying issue, should be fixed, come on Zwift!

Updating this thread and locking.

The distance bug was addresses across MacOS / AppleTV / Windows / iOS platforms this week. Please see this thread

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