I was recently looking up an old friend on the USCF player looker up and ended up going down the rabbit hole of clicking on tournaments and other players, eventually leading me to the 2019 NJ Open. Near the top, I see a name that I recognize: Brandon Jacobson
https://ratings.fide.com/profile/30901561
Back in 2012, I played at a small local tournament and beat him pretty easily (sure I made mistakes in the game too, but I won lots of material). Of course, he just became a GM in 2020. When I played him, he was only 8 y.o. and 1000 rating points less than he is now. But this is the closest I think I'll ever get!