Treadmill running with Race S: not counting distance correctly
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Hi everyone!
I’ve been experiencing a frustrating issue with my Suunto Race S when running on a treadmill, and I’m wondering if anyone else has encountered something similar or found a solution.
The watch barely records any distance during treadmill runs. For example, after running 5 km on the treadmill, my Race S might show only 0.23 km.
The distance does increase during the workout, but extremely slowly and nowhere near the actual distance.
What I’ve already checked and tried:
- I’m using the Treadmill sport mode.
- Autopause is disabled.
- I’ve manually calibrated the distance multiple times, directly on the watch immediately after finishing each workout.
- I’ve run multiple times outside.
Despite repeated calibrations, the distance measurement remains extremely inaccurate during runs.
I understand that treadmill distance is estimated using wrist movement and that some differences are expected, but this seems too big of a gap, between real and watches data.
Related discussions I’ve already read:
https://forum.suunto.com/topic/13100/treadmill-where-s-the-calibration
https://forum.suunto.com/topic/10114/treadmill-speed-and-distance-by-walk-with-gps-calibrationHas anyone else experienced this level of distance underestimation with the Race S and how did you fix it?
Is this a known firmware issue, or could something be wrong with my watch (steps are counted corectly)?
Why doesn’t repeated manual calibration seem to improve the distance estimation?
Are there any settings, diagnostic steps, or fixes I should try?
Thanks for any help.
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First thing you could try is to soft reset your watch by holding the upper button for >12s and check if something changes…
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@Žan-Škorja The gap between 5 km on the treadmill and 0.23 km on the watch is striking, especially since the steps are counted correctly. It would be interesting to know whether the manual calibration values are being saved after each run.
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@MotivationSeeker yes, the manual adjustment is used for all consecutive runs
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@Žan-Škorja You’re worrying about it unnecessarily. Every run on the treadmill is different, 230m out of 5km is nothing. Go run outside and you’ll get it right. Or buy a treadmill or a chest strap. It’ll help with accuracy
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@MarTej_cz I understand he has a measurement of 230m instead of 5000m
not 230m difference to the actual 5000m
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@Egika
my mistake I understood it wrong I’m sorry. You’re right 5km actually only 230m is wrong. -
Are there any settings, diagnostic steps, or fixes I should try?
Maybe try the same running form as if running freely (off the treadmill).
i.e. What is the hand wearing the watch doing? Holding the treadmill somehow?
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