The Union-Tribune’s John Maffei picks the winners of Friday’s high school football playoff games. All games at 7 p.m., unless noted:

Division 1

(9) Del Norte (6-4) AT (8) Oceanside (7-3)

Preview: Del Norte lost 27-21 to San Marcos last week after winning three in a row. … Oceanside beat Valley Center 13-7 last week to win the Valley League title. The Pirates have won four in a row.

Winner plays: (1) San Marcos

Prediction: Oceanside 27, Del Norte 24

(12) Santa Fe Christian (9-1) at (5) Mount Miguel (8-2)

Preview: Coastal League champion Santa Fe Christian has won eight in a row, outscoring its opponents 310-88. The only loss was 26-14 to Oceanside. … Mount Miguel has outscored its opponents 443-285, with the losses coming to Los Angeles Loyola and Granite Hills.

Winner plays: (4) El Camino

Prediction: Mount Miguel 27, Santa Fe Christian 21

(11) Scripps Ranch (9-1) at (6) Torrey Pines (4-6)

Preview: Eastern League champion Scripps Ranch was 9-0 before losing 37-36 to Mount Miguel last week. … Torrey Pines plays in the brutally tough Avocado League and plays great defense.

Winner plays: (3) Granite Hills

Prediction: Torrey Pines 17, Scripps Ranch 14

(10) Brawley (9-1) at (7) Rancho Bernardo (8-2)

Preview: Brawley, champion of the Imperial Valley League, has outscored its opponents 417-117. The only loss was 21-13 to University City. … Rancho Bernardo has given up just 129 points.

Winner plays: (2) Carlsbad

Prediction: Rancho Bernado 21, Brawley 17

Division 2

(9) Imperial (9-1) vs. (8) Christian (8-2) at Granite Hills High School

Preview: Imperial has outscored its opponents 416-157. The only loss is 49-28 to Brawley. … City League champion Christian has won six in a row and has allowed only 103 points.

Winner plays: (1) University City

Prediction: Christian 27, Imperial 24

(12) Valley Center (7-3) at (5) Point Loma (5-5)

Preview: Valley Center lost a league-title showdown to Oceanside last week. … Point Loma has been outscored 237-156 this season, losing 55-6 to Cathedral Catholic last week.

Winner plays: (4) Poway

Prediction: Valley Center 24, Point Loma 21

(11) Madison (4-6) at (6) La Jolla (6-4)

Preview: Madison enters the playoffs having lost to Cathedral Catholic and Lincoln. Madison has scored just 146 points. … La Jolla has also lost two in a row, falling to Point Loma and University City. Point Loma beat Madison 23-3 in Week 3.

Winner plays: (3) Helix

Prediction: La Jolla 23, Madison 20

(10) Mt. Carmel (6-4) vs. (7) Bishop’s (6-3) at University City High School

Preview: Mt. Carmel has been outscored 280-249 this season, including a 49-0 loss to Rancho Bernardo last week. … Bishop’s has outscored its opponents 327-144, but lost 24-17 to Santa Fe Christian last week.

Winner plays: (2) Mater Dei Catholic

Prediction: Bishop’s 28, Mt. Carmel 17

Division 3

(9) Otay Ranch (5-5) at (8) Patrick Henry (6-4)

Preview: Otay Ranch has lost its last two, scoring just six points. … Patrick Henry, which has scored 367 points, lost 22-21 to San Diego last week.

Winner plays: (1) Central Union

Prediction: Patrick Henry 30, Otay Ranch 20

(12) Army-Navy (8-2) at (5) Eastlake (4-6)

Preview: Army-Navy enters the playoffs on a three-game winning streak and averages 34.7 points a game. … Eastlake has also won three in a row, but the Titans have scored just 147 points this season.

Winner plays: (4) San Pasqual

Prediction: Army-Navy 27, Eastlake 24

(11) Steele Canyon (4-6) at (6) Escondido

Preview: Steele Canyon has lost five in a row and has been outscored 245-120. … Escondido has a high-flying offense, but lost 24-21 to crosstown rival San Pasqual last week.

Winner plays: (3) San Diego

Prediction: Escondido 26, Steele Canyon 18

(10) La Jolla Country Day (5-5) vs. (7) St. Augustine (0-10) at Mesa College

Preview: LJCD beat Parker 41-10 last week after losing two in a row. … St. Augustine has scored just 86 points this season and has lost 11 in a row.

Winner plays: (2) Holtville

Prediction: St. Augustine 14, La Jolla Country Day 13

Division 4

(9) Calexico (6-4) at (8) Montgomery (7-3)

Preview: Calexico has shut out its last two opponents, Southwest-El Centro and Vincent Memorial. … Montgomery, the Mesa South Bay League champion, has won five in a row.

Winner plays: (1) Ramona

Prediction: Montgomery 21, Calexico 15

(12) Vincent Memorial (6-4) at (5) Westview (3-7)

Preview: After winning five in a row, Vincent Memorial closed the regular season on a three-game losing streak. … Westview has scored just 110 points and has lost three in a row.

Winner plays: (4) Mission Bay

Prediction: Westview 23, Vincent Memorial 15

(11) Sweetwater (5-5) at (6) Mira Mesa (0-10)

Preview: Attacking on the ground, Sweetwater has scored 199 points this season while giving up 158. …Mira Mesa has lost 11 in a row, but has five losses this season by eight points or less.

Winner plays: (3) Grossmont

Prediction: Mira Mesa 20, Sweetwater 17

Division 5

(9) Francis Parker (4-6) AT (8) Coronado (5-5)

Preview: Parker has lost three in a row and has been outscored 116-46. … Coronado closed the regular-season with a win over Clairemont.

Winner plays: (1) Vista

Prediction: Coronado 24, Francis Parker 22

(12) Monte Vista (5-5) at (5) Fallbrook

Preview: Monte Vista averages 31.3 points a game and beat Valhalla last week. … Fallbrook has lost 11 in a row and has scored just 103 points this season.

Winner plays: (4) Hoover

Prediction: Fallbrook 21, Monte Vista 20

(11) Mar Vista (4-6) at (6) West Hills (5-5)

Preview: Mar Vista is the Metro Pacific League champion and has won three in a row. … West Hills beat Santana last week to end the regular season.

Winner plays: (3) Crawford

Prediction: West Hills 23, Mar Vista 18

(10) Kearny (7-3) at (7) Santana (6-4)

Preview: High-flying Kearny has scored 404 points this season and has won three in a row. … Santana finished the regular season with a 38-20 loss to West Hills.

Winner plays: (2) Bonita Vista

Prediction: Kearny 28, Santana 21

Division 5-AA

(5) Victory Chirstian (3-6) at (4) Maranatha Christian (7-3)

Preview: Victory Christian has lost three in a row, giving up 137 points. … Maranatha has won two in a row and beat Victory 49-14 in the regular season.

Winner plays: (1) Calipatria

Prediction: Maranatha Christian 37, Victory Christian 21

(6) O’Farrell Charter (2-8) vs. Coastal Academy (8-2) at Army-Navy

Preview: In five previous seasons, O’Farrell has never been to the playoffs. … Coastal Academy has outscored its opponents 274-80 and beat O’Farrell 34-6 last week.

Winner plays: (2) Tri-City Christian

Prediction: Coastal Academy 37, O’Farrell Charter 17

8-man

(5) Borrego Springs (5-2) at (4) Horizon Prep (5-2)

Kickoff: 4 p.m.Preview: Borrego Springs has outscored its opponents 289-282. … Horizon Prep, champions of the Manzanita League, beat Borrego Springs 62-30 earlier in the season.Winner plays: (1) St. Joseph AcademyPrediction: Horizon Prep 40, Borrego Springs 20

(6) OCEAN VIEW CHRISTIAN (5-2) AT (3) CALVIN CHRISTIAN (5-3)Preview: Ocean View Christian has outscored its opponents 157-139. …Calvin Christian has scored 338 points, but has lost its last two.Winner plays: (2) Foothills ChristianPrediction: Calvin Christian 37, Ocean View Christian 21Last week: 5-5Season: 79-31