Adrian Hernandez was signed out of the DR and 2018 was his first year play professional ball which he did at age 17 in the Dominican Summer League. He’s graded at 50 with Extreme Risk. From Baseball America, “Hernandez had never lifted weights prior to signing, so his power to his pull side and the middle of the field speaks to his present strength and and bat speed”.
In the DOSL he slashed .261/.351/.386 hitting 5 homers and 12 doubles over 285 plate appearances. He spent the bulk of his playing time in Center Field with a just a couple of games at the corner spots and 2 where he came in only as a hitter. He committed 0 errors in 124 chances and recorded 119 putouts with 5 assists. This is remarkable only because the closing like to the Baseball America blurb about him was “Regarded as a hard nose player, Hernandez will begin to working to improve his defensive instincts.”
He’s young and is still quite far away. Most likely he starts next season back in the DOSL or in the Gulf Coast League given his age. Even at 18 next year, there’s a chance he will still be below the average age (or just ever so slightly above it) in the DOSL, the Gulf Coast League is the next significant step for him. If he ends up playing all of next year in the DOSL, then the following year he probably goes straight to Kingsport where he will be at 19 still below the average age at that level. (For this, I’m using Edgardo Fermin as a guide).