Newport Harbor (6-5) fell short of ending Alemany's perfect season. The Sailors exit the opening round of the postseason for the second straight year.
Alemany (11-0), in its first year in the Pac-5 Division, advances to the second round, where it plays Lakewood. Newport Harbor lost its chance for a rematch against the Lancers, who eliminated the Sailors in the playoffs last season.
The Sailors found themselves behind, 14-0, in the first quarter. Alemany tried to limit Newport Harbor's offensive opportunities by trying two onside kicks in the first three minutes.
Brinkley said he warned his special teams about the possibility of onside kicks. The second one against the Sailors was not a success, but the first one was.
The successful onside kick recovery by the Warriors and a Newport Harbor turnover inside the opponent's five-yard line hurt the Sailors. Both led to Alemany touchdowns in the first 12 minutes.
Adams was also responsible for the Warriors' success early on, scoring on runs of one and 35 yards. He finished with 135 yards on 16 carries and completed 17 of 24 passes for 197 yards.
The 6-foot, 180-pounder was elusive, recording 91 yards rushing by halftime. A chunk of the total came on a 13-play, 98-yard drive, which Adams capped with a one-yard touchdown run with 20 seconds left in the first quarter.
After Newport Harbor missed an opportunity to tie the game at 7-7 when it reached Alemany's two, the offense responded on its second possession in the game.
The Sailors marched down field, mixing in passes from quarterback Austin Rios and runs by tailback Buzzy Yokoyama.