I see a lot of smiling faces in your pics!
I'm glad this is working out for you!
As far as races, anything you do on the track is good for grass track. Just adjust the duration to suit track conditions and racer ability.
Apparently, our track can be seen from space. Here's a link to the google image:
https://www.google.com/maps/place/Pa...!4d-75.7230064
Sorry, I don't know how to save the image to post it directly.
PI