In general I just ride on Zwift and rarely do group rides and races. Rides maybe a bit more frequently than races, but that is a single digit number of all my riding. Tonight I signed up for the Scheels Social Ride and quickly I noticed that my placing in the group was listed all along. And while group was stretched out a bit there was a group of about 40 surfing the red curtain/fence, and after 33k the curtain disappeared and all of a sudden the group had swelled back to about 60 and everyone was racing. I put the hammer then down too and hit 56km/h and with my big diesel engine pushed it to the end. I passed all but one and ended up 2nd in the results of this "social ride." I am such a rookie.
My heart rate however was only 117 (captured by 4iiii Viiiiva), lowest by far of all those near me.