Are you planning to upload your videos to YouTube? Why steam them on Facebook and let them make money off your labor. Setup a YouTube account upload them to YouTube then everyone can watch them. You can even post them on the forum.
If you have a IPhone Bluetooth your video from your recording device and use Imovies to edit them and upload them YouTube. You will save space on card and can film all weekend long.
You should always record in 4K if you want it to look really good. But you can record down to 720p at 240fps but at 1080p you can only get 60fps to 30fps to slow for recording action on the diamond.
And don’t trust the cards will hold what they claim. I have a cannon eos 50, iPhone 11 max and a GoPro. The cannon 50 eos hand down get the most out of the cards, iPhone leave about 2gb empty and says it. Full and the GoPro only get about 75% usage out of the card. All 3 do a great job when filming as long as everything is setup correctly for each device. Hope this helps.
You need to practice working with your settings and go out and get filming done before the big game. Practice filming in different setting to determine the best settings on your camera and the conditions you’ll run into