Forerunner 965 showing very easy run as Anaerobic 2.8?

Can you see in the "Time in HR Zones" graph on the activity (its at the base of the charts tab) how it looks?i.e what % does it show in each zone and also in the Stats what does it show as the max HR hit? 

Thanks for the response.

I’ve attached (hopefully) for my time in HR Zones below, and my max HR for the run shows as 137bpm.

I’ve also included the aerobic chart as first mentioned.

My max HR is set to 180bpm.

Thanks.

are you using a Stryd or another footpod?

Hi. I use a Garmin HRM chest strap.

Thanks.

If your HRM Pro is set up to track pace, that may be causing this issue. I've seen something similar happen when my Stryd was the pace source.

Thanks for your input. I’ve managed to turn off pace and distance on the HRM Pro. So that should now use the watch instead. Let’s see what happens, cheers, appreciated

I checked my HRM pro plus as a source of pace and distance and saw that this was causing the problem.

Thx so much. I’ll see how it goes in my upcoming runs.

keep in mind that this happens when running outside. when the gps is not working, everything is calculated correctly