AAA Cedar Run District

Favorite: Battlefield (10-3)

The Bobcats have gone 54-9 the past five seasons, with three consecutive Division 6 state playoff berths and a state title in 2010.

Best rivalry: Osbourn vs. Battlefield (Oct. 5)

Osbourn, in the playoffs six times in the past seven years, has beaten Battlefield in three of the teams’ past four meetings. The past five games in the series have been determined by a total of 17 points. The teams have combined to win or share the past seven Cedar Run titles.

Players to watch: RB C.J. Burnes, Stonewall Jackson (6-0, 205, Sr.); OL/DL Brandon Dukeman, Battlefield (6-4, 260, Sr.); RB/DB Da’Qwan Earl, Broad Run (5-10, 160, Jr.); WR/DB Dorian Jenkins, Broad Run (5-11, 165, Sr.); QB/DB Conner Lane, Osbourn (5-11, 165, Sr.); WR/LB Nick Newman, Battlefield (6-5, 210, Sr.); WR Trent Saflin, Battlefield (5-11, 185, WR/DB); QB Ryan Swingle, Battlefield (6-4, 210, Sr.)

— Preston Williams

AAA Liberty District

Favorite: Stone Bridge (10-2)

The Bulldogs have won at least 10 games in 10 consecutive seasons and have appeared in six of the past seven region championship games, winning five.

Best rivalry: McLean vs. Langley (Nov. 2)

Although neither team has made an appearance in a region title game since McLean in 1996, the two schools are separated by just four miles and draw heavy local crowds for their annual showdown.

Players to watch: DL Jonathan Allen, Stone Bridge (6-3, 245, Sr.); QB Ryan Burns, Stone Bridge (6-6, 230, Sr.); RB Rassaun Goldring, Stone Bridge (5-8, 155, Sr.); OL Burke Bartow, McLean (6-3, 340, Sr.); OL Jack Howerton, Langley (6-2, 320, Sr.)

— Paul Tenorio

AA Dulles District

Favorite: Briar Woods (14-1)

The two-time defending Division 4 champion has won 20 straight games against district foes (including playoffs) and returns 11 starters, including heavy-hitting LB Matt Rolin (South Carolina), all-district RB Cory Colder and third-year QB Trace McSorley.

Best rivalry: Loudoun County vs. Tuscarora (Sept. 21)

The second-year Huskies knocked their Leesburg rivals from unbeaten ranks en route to their first playoff berth last season.

Players to watch: FB/LB Daniel Adigun, Heritage (5-7, 190, So.); OT/DE Darius Anderson, Tuscarora (6-4, 260, Sr.); RB/LB Cory Colder, Briar Woods (5-8, 190, Sr.); DB Atem Ntantang, Woodgrove (5-11, 185, Sr.); LB/TE Matt Rolin, Briar Woods (6-4, 215, Sr.); WR/DB Brad Szoka, Loudoun County (6-1, 175, Sr.)

— Matt Brooks