I don't have a capture card, so I did a test with my laptop's webcam. It flips everything and you can't really see the timers or anything, so I'm not sure if the quality is acceptable. https://ibb.co/ck2KwVS (Sorry, I'm not the best at integrating pictures into the post)

Check with the game moderators of the Mario Kart game you play.

Ok, thanks.

In the Mario Kart community its rare a new player even needs a video for their time. I'm sure the quality is good enough.