In the first six weeks of the season, local teams have tested themselves against foes from leagues across the state and country. Those challenges have been in preparation for conference play, which many teams will dive into for the remainder of the season.

McNamara has proved itself as the early favorite in the Washington Catholic Athletic Conference, but the league appears more competitive than usual with numerous contenders.

In Maryland and Virginia, Madison, Howard, Great Mills, Clarksburg and Loudoun Valley are the remaining undefeated teams, and they’ll look to maintain their momentum as they enter the bulk of league play.

This week features a key game between Riverdale Baptist and National Christian as well as a rematch of last year’s Southern Maryland Athletic Conference title game between Great Mills and North Point.

1. McNamara (16-3) Last ranked: 1

Mississippi signee Madison Scott scored 20 points in the Mustangs’ overtime win over Elizabeth Seton.

2. Paul VI (16-2) LR: 2

The Panthers snapped a two-game losing streak with three consecutive victories.

3. Riverdale Baptist (14-3) LR: 4

Boston College signee Kaylah Ivey scored 17 points in the Crusaders’ 79-69 win over TPLS Christian.

4. Madison (14-0) LR: 6

Guard Amalia Makrigiorgos scored 18 points in the Warhawks’ 52-35 win over Oakton.

5. Pallotti (13-4) LR: 3

The Panthers gave up a late game-winning basket in a 48-47 loss to Poly.

6. O’Connell (12-3) LR: 7

Guard Jada Brown made the game-winning three-pointer in the Knights’ 52-51 win over St. John’s.

7. Sidwell Friends (8-3) LR: 9

The Quakers visit Bullis on Friday.

8. National Christian (13-5) LR: 10

At the Private vs. Public Challenge in Owings Mills, the Eagles beat Western, 53-50.

9. New Hope (14-7) LR: 5

The Tigers beat Caravel Academy (Del.) but fell to Trenton Catholic Academy (N.J.).

10. C.H. Flowers (7-1) LR: 12

The Jaguars returned to Prince George’s County play with a 65-13 win over High Point.

11. Stone Ridge (11-2) LR: 14

Guard Chetanna Nweke had 23 points, 14 rebounds and six assists in the Gators’ 62-49 win over Episcopal.

12. St. John’s (9-4) LR: 11

Guard Azzi Fudd’s 21 points weren’t enough in the Cadets’ 52-51 loss at O’Connell.

13. Elizabeth Seton (10-4) LR: 8

The Roadrunners fell to two perennial WCAC contenders: St. John’s and McNamara.

14. Howard (12-0) LR: 15

The Lions are 3-0 against private schools after beating Mount Carmel.

15. Churchill (9-1) LR: 16

Guard Brittini Martin averaged 23 points and six rebounds in wins over Walter Johnson and Wootton.

16. Great Mills (11-0) LR: 17

The Hornet face a big conference test Wednesday at North Point.

17. Dunbar (14-2) LR: 19

Guard Cameron Wilkes scored 16 points in the Crimson Tide’s 53-23 win over Eastern.

18. Clarksburg (9-0) LR: Not ranked

For the first time, the Coyotes are 9-0.

19. Chantilly (9-2) LR: NR

The Chargers haven’t lost a public school game since their season-opener.

20. West Springfield (10-2) LR: NR

The Spartans’ losses have come against two of Virginia’s top teams: Madison and James River of Midlothian.

Dropped out: No. 13 Old Mill (9-1), No. 18 Maret (8-4), No. 20 South River (9-2)

On the bubble: W.T. Woodson (10-2), South River, Edison (7-4), South Lakes (9-3)