The Zwift RunPod typically delivers acceptable ‘out of the box’ accuracy, meaning if you set your treadmill to 6mph/10kph and start running, your avatar also moves at approximately 6mph/10kph.
However, this is not always the case. Especially if you are running at varying paces you may find your RunPod struggles to keep up.
Enter the Zwift Calibration Tool.
This in-game tool gives you the ability to more closely match the speed displayed on your treadmill to the speed of your avatar displayed within the Zwift app. Here’s how it works.
Start with the Wrench
Make sure your RunPod has sufficient battery life remaining and wake it up by giving it a tap or walking on the treadmill for a few seconds. Pair the RunPods as usual in the Pairing Screen.
Once paired you should notice a small wrench icon next to the word ‘Unpair’. This is the calibration tool. Click it to start calibrating your RunPod. The process does not take very long to complete.
Once in the calibration tool you will see there are five stages to the process. Stage one is to choose the speeds at which you wish to calibrate. The tool has three points of calibration for increased accuracy over a wider range of speeds.
You will be asked to run at three different speeds on the treadmill: Slow, Normal and Fast. Choose a Normal speed at which you would be comfortable running for the majority of the run.
So if you are intending to run for an hour at 6mph/10kph with a few pick-ups and a few slower recovery periods, then set the Normal speed accordingly at 6mph/10kph by clicking the up or down arrows.
Set Your Treadmill
Stage two is to start running. Start your treadmill and set it to the Normal speed. That is the middle of the three calibration speeds.
Once you reach this speed the calibration tool will automatically start stage three and a 40-second countdown will begin.
The calibration tool may pause if it detects that you have changed speed significantly and are no longer running at the required pace. Be sure to maintain the correct running speed for the full 40 seconds.
Stages Four and Five
Once stage three is complete you will be directed to slow the treadmill down to the slowest calibration speed, which in our example is 8.5kph. The calibration will wait until it detects that you are moving at approximately the correct speed before it begins the 40-second countdown.
Finally, you will be asked to speed up to the fastest point of calibration to complete the process. Again, the tool will not start the countdown until it detects approximately the right speed from your RunPod.
The calibration tool will not start or continue until it sees approximately the correct speed data coming from your RunPod. Therefore, calibration problems may indicate that your RunPod and/or treadmill is not performing as it should.
It is important to note that if you are having problems getting the calibration tool to work, the RunPod is the likely culprit rather than the calibration tool itself. Make sure your RunPod has not lost its connection to Zwift and try again.
Also, try varying the speed of the treadmill. It is possible that while the treadmill display says one speed, the belt itself is moving at a slightly different speed and may need adjustment.
In most cases, the calibration process will be completed without issue, resulting in your speed on Zwift more closely matching the speed of your treadmill. See you out on course!