He later moved to Detroit, Michigan and attended Martin Luther King High School (MLK).

[4] Moore passed for 3,044 yards with 40 touchdowns against three interceptions during his junior season while MLK won the Division III state championship.

[5] Moore led MLK to a second straight state title as a senior while passing for 2,392 yards and 32 touchdowns with three interceptions.

[11] Moore had the option to meet with Oregon's name, image and likeness (NIL) collectives during his official visit, but opted against doing so.

However, UCLA coach Chip Kelly named junior Ethan Garbers the starter, while also saying that Moore and transfer quarterback Collin Schlee would also play in the opener.

Moore played in most of the regular-season finale against California after Garbers left with an arm injury in UCLA's opening drive.