Yippee, another sports editor.
Ask for full screen rough cut editing and we might be able to get it bumped up the list
When I edit my son's soccer matches I rough cut first to get all the scenes that he is in and then go back to fine tune the the cuts and add effects.
The idea of full screen rough cut editing is you will see the video on the entire screen but only be able to do the most basic editing functions such as cutting and deleting all the unwanted video.
In the meantime what I do as my work flow is the following, which may or may not give you some ideas:-
1. When I video a game I leave the camera rolling. I don't stop and start except for breaks. This way I only have 3 or 4 long video clips
2. I import video for the entire game into the project
3. I double click each of the 3 or 4 videos clips and in frame and fit I zoom in a little on the video
4. I then go back to timeline and scroll through to cut out all the clips that my son isn't in
5. I then reset the zoom to original and start my detailed editing
It's not perfect but since you should be trying to keep your son in the center of the frame when making the video in most cases you won't be zooming your son out of frame and the slight zoom you make before doing your rough cut can make it easier to see you son.
Another idea that I think Terri gave me is to edit in portrait. Until then I had been editing by holding my iPad in landscape but if you hold it in portrait the video is actually a little bigger on the screen.