Some rounds post as activities to Strava

I've had several rounds post to Strava as activities. Meaning the watch is tracking me continuously around the course. Typically, this doesn't happen. I can view my shots  I like this, but I have no idea how I did it. Any ideas? 

I have a Garmin S70 and typically I just the "play golf" and start my round. I'm really not sure what I did different. 

Thanks!