The Times’ high school football rankings

It’s showdown week, with No. 1 Santa Margarita taking on No. 3 St. Bonaventure and No. 4 Narbonne facing No. 10 Gardena Serra. Orange Lutheran, Tustin, Sherman Oaks Notre Dame and La Serna make their first appearance in the top 25.

Rank, School, Division, Last week, Next game (Previous rank)

1. SANTA MARGARITA Pac-5 (4-0); Def. Carson, 72-0. Next: vs. St. Bonaventure at Saddleback College, Friday (1)

2. VISTA MURRIETA Inland (3-0); Def. Redlands East Valley, 59-14. Next: vs. San Diego Cathedral, Friday (2)

3. ST. BONAVENTURE Pac-5 (4-0); Def. Atascadero, 56-23. Next: vs. Santa Margarita at Saddleback College, Friday (4)

4. NARBONNE City D-I (3-0); Def. Lakewood, 61-6. Next: at Gardena Serra, Friday (5)

5. TESORO Pac-5 (4-0); Def. Colony, 56-7. Next: vs. Chaparral, Friday (6)

6. UPLAND Inland (4-0); Def. Silverado, 34-3. Next: vs. Corona Santiago, Friday (7)

7. MISSION VIEJO Pac-5 (4-0); Def. La Quinta, 63-14. Next: vs. Aliso Niguel, Friday (8)

8. OAKS CHRISTIAN Pac-5 (4-0); Def. Chaminade, 44-30. Next: vs. Crenshaw, Friday (9)

9. CORONA CENTENNIAL Inland (2-1); Def. Alemany, 36-32. Next: at Carson, Friday (11)

10. GARDENA SERRA Western (4-0); Def. Wilmington Banning, 43-0. Next: vs. Narbonne, Friday (10)

11. MATER DEI Pac-5 (3-0); Def. Santa Monica, 55-0. Next: vs. Edison at Orange Coast College, Friday (12)

12. ST. JOHN BOSCO Pac-5 (4-0); Def. Loyola, 45-0. Next: at Sandy (Utah) Jordan, Sept. 29 (13)

13. ALEMANY Pac-5 (3-1); Lost to Corona Centennial, 36-32. Next: vs. Dorsey at Jackie Robinson Stadium, Friday (3)

14. CRESPI Pac-5 (5-0); Def. Palisades, 70-8. Next: at Westlake, Friday (14)

15. LOMPOC Western (4-0); Def. Dos Pueblos, 31-14. Next: vs. Morro Bay, Friday (15)

16. BISHOP AMAT Pac-5 (3-0-1); Def. Charter Oak, 30-14. Next: vs. St. Paul, Friday (16)

17. RANCHO CUCAMONGA Inland (3-1); Def. Miller, 45-0. Next: vs. Riverside North at Riverside College, Friday (18)

18. HART Northern (2-1); Def. Bakersfield Ridgefield, 49-27. Next: vs. Birmingham at College of the Canyons, Friday (19)

19. EDISON Southwest (3-0); Def. Servite, 6-0. Next: vs. Mater Dei at Orange Coast College, Friday (20)

20. EL TORO Pac-5 (4-0); Def. Palos Verdes, 45-24. Next: at El Cajon Valhalla, Friday (24)

21. ORANGE LUTHERAN Pac-5 (4-0); Def. La Habra, 27-7. Next: at Redondo, Friday (NR)

22. CHAMINADE Western (3-1); Lost to Oaks Christian, 44-30. Next: at Sherman Oaks Notre Dame, Sept. 28 (21).

23. TUSTIN Southwest (4-0); Def. Beckman, 42-14. Next: at Yorba Linda, Friday (NR)

24. SHERMAN OAKS NOTRE DAME Pac-5 (3-1); Def. Birmingham, 44-0. Next: at Golden Valley, Friday (NR)

25. LA SERNA Southeast (4-0); Def. Westlake, 38-9. Next: vs. Norco, Friday (NR)

— Eric Sondheimer