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URBANDALE, Iowa -- Following a playoff weekend that saw the upset of eight Top 25 teams, there are plenty of changes in the Week 17 National Prep Football Poll.

South Carolina 4A/I champion Dorman (Roebuck) leads the parade of teams entering the national poll this week. The No. 7 Cavaliers shocked then-No. 2 Byrnes (Duncan), 28-17, avenging their only loss of the season.

Tulsa Union also avenged its only loss of the year and is back in the national poll at No. 14. The Redskins hammered rival Jenks, 52-19, for the Oklahoma 6A crown.

No. 19 Northside (Warner Robins) and No. 20 Servite (Anaheim), both of which were nationally ranked earlier this season, return to the national Top 25 in advance of playing in championship games this weekend. Northside is gunning for the Georgia 5A title while Servite will meet No. 3 Edison for the CIF-SS Pac-5 crown.

No. 21 West Monroe (La.) and No. 23 Hamilton (Chandler, Ariz.), each no stranger to the national rankings, can add to their already impressive collection of state championship hardware this weekend.

No. 24 La Salle (Wyndmoor) has advanced to the Pennsylvania 4A semifinals in its first season competing in the state playoffs.

Northeast Region
1. Ramsey, N.J., Don Bosco Prep (12-0) (1)
2. Wyndmoor, Pa., La Salle (12-1) (6)
3. Folsom, Pa., Ridley (13-1) --
4. Mechanicsburg, Pa., Cumberland Valley (13-2) --
5. Selinsgrove, Pa. (14-0) (10)
6. Manheim, Pa., Central (14-0) --
7. State College, Pa. (11-2) --
8. Westwood, Mass., Xaverian (13-0) (9)
9. North Tonawanda, N.Y. (13-0) (8)
10. Jersey City, N.J., St. Peter's (9-3) (7)

East Coast Region
1. Matthews, N.C., Butler (14-0) (4)
2. Roebuck, S.C., Dorman (14-1) (7)
3. Olney, Md., Good Counsel (11-1) (3)
4. Duncan, S.C., Byrnes (13-2) (1)
5. Frederick, Md., Linganore (14-0) (5)
6. Haymarket, Va., Battlefield (12-0) (8)
7. Hampton, Va., Phoebus (14-0) (9)
8. Moncks Corner, S.C., Berkeley (14-1) --
9. Millersville, Md., Old Mill (12-2) --
10. Charleston, W.Va., South Charleston (13-1) --

Southeast Region
1. Fort Lauderdale, Fla., St. Thomas Aquinas (13-0) (1)
2. Miami, Fla., Central (12-1) (2)
3. Memphis, Tenn., Memphis University (13-0) (4)
4. Batesville, Miss., South Panola (14-1) (6)
5. Lakeland, Fla. (13-0) (3)
6. Warner Robins, Ga., Northside (13-1) --
7. West Monroe, La. (14-0) (8)
8. River Ridge, La., John Curtis (13-0) (9)
9. Tampa, Fla., Plant (12-1) (7)
10. Niceville, Fla. (12-0) --

Midwest Region
1. Youngstown, Ohio, Mooney (15-0) (3)
2. Park Ridge, Ill., Maine South (14-0) (2)
3. Fort Thomas, Ky., Highlands (15-0) (4)
4. Hilliard, Ohio, Davidson (13-1) (9)
5. Cleveland, Ohio, Glenville (13-2) (1)
6. Novi, Mich., Detroit Catholic Central (14-0) (5)
7. Cleveland, Ohio, St. Ignatius (11-1) (6)
8. Evansville, Ind., Reitz (15-0) (7)
9. Milwaukee, Wis., Marquette (14-0) (8)
10. Wheaton, Ill., Wheaton-Warrenville South (13-1) (10)

Midlands Region
1. Denver, Colo., Mullen (14-0) (1)
2. Hutchinson, Kan. (13-0) (2)
3. South Jordan, Utah, Bingham (13-1) (3)
4. Omaha, Neb., Millard South (13-0) (4)
5. St. Paul, Minn., Cretin-Derham Hall (12-1) (5)
6. Iowa City, Iowa, City High (14-0) (6)
7. Webster Groves, Mo. (13-0) (7)
8. Florissant, Mo., Hazelwood Central (13-1) (8)
9. Olathe, Kan., North (13-0) (9)
10. Eden Prairie, Minn. (12-1) (10)

Southwest Region
1. Abilene, Texas (13-0) (3)
2. Katy, Texas (13-1) (4)
3. Tulsa, Okla., Union (13-1) (5)
4. Chandler, Ariz., Hamilton (13-0) (6)
5. Austin, Texas, Lake Travis (14-0) (7)
6. Las Vegas, Nev., Bishop Gorman (15-0) (8)
7. Round Rock, Texas, Stony Point (13-1) (9)
8. Cedar Hill, Texas (12-1) --
9. Euless, Texas, Trinity (12-2) --
10. Springdale, Ark., Har-Ber (12-1) --

West Coast Region
1. Huntington Beach, Calif., Edison (13-0) (1)
2. Westlake Village, Calif., Oaks Christian (13-0) (2)
3. Anaheim, Calif., Servite (12-1) (4)
4. Oceanside, Calif. (12-0) (6)
5. Mission Viejo, Calif. (12-1) (3)
6. Los Angeles, Calif., Crenshaw (13-0) (7)
7. , (13-0) --
8. Rocklin, Calif. (13-0) --
9. Westlake Village, Calif., Westlake (13-0) --
10. Sammamish, Wash., Skyline (12-2) (10)

Dropped out: No. 8 Peoria, Ariz., Centennial (13-1); No. 11 Chesapeake, Va., Oscar Smith (13-1); No. 12 Jenks, Okla. (13-1); No. 19 Newnan, Ga. (13-1); No. 23 Lansdale, Pa., North Penn (13-1). Northeast: No. 3 Harrisburg, Pa., McDevitt (12-1); No. 4 Pittsburgh, Woodland Hills (12-2); No. 5 Easton, Pa. (13-2). East Coast: No. 6 Charlotte, N.C., Independence (13-2); No. 10 Huntingtown, Md. (13-1). Southeast: No. 10 Lutcher, La. (13-1). Southwest: No. 10 Tyler, Texas, John Tyler (12-2). West Coast: No. 5 Sacramento, Calif., Grant (12-1); No. 8 Kahuku, Hawaii (12-1); No. 9 Lakewood, Calif. (11-2).

FEATS OF THE WEEK: No. 2 Ramsey, N.J., Don Bosco clinched its third Top-10 finish in seven years, routing regionally ranked Jersey City, St. Peter's, 35-15, for the Non-Public Group 4 state title at Giants Stadium. State player of the year Tony Jones (uncommitted) ran for 215 yards and five touchdowns for the Ironmen, who have won 37 straight against in-state competition . . . For the second time in four seasons, regionally ranked Hilliard, Ohio, Davidson scored a late two-point conversion to capture the Division I state championship. Senior Jake Trubiano plunged in for the deciding score as the Wildcats upset then-No. 4 Cleveland, Glenville, 16-15, at Fawcett Stadium . . . The most surprising result of the weekend came in the Arizona Class 5A/II semifinals, where Tempe, Marcos de Niza stunned then-No. 8 Peoria, Centennial, 16-14. It ended the Coyotes' 39-game winning streak, which was the fifth longest in the nation . . . A record crowd of 21,661 at Aloha Stadium watched Honolulu, Kamehameha beat then-regionally ranked Kahuku, 34-21, for the Hawaii Division I title . . . No. 14 Tulsa, Okla., Union avenged its only loss and hammered then-No. 12 rival Jenks, 52-19, for its second straight 6A title. Union and Jenks have combined to win the last 14 Oklahoma 6A crowns.

Copyright 2009 World Features Syndicate, Inc...endit

This is Jamie DeMoney's 10th year compiling the World Features Syndicate/Associated Press National Prep Poll. He has covered high school sports and recruiting for more than 15 years and compiled the National Prep Poll since 1999. DeMoney has also compiled high school football and basketball rankings for Sporting News, School Sports, and RISE. DeMoney was managing editor of American Football Monthly and assistant national editor of All-Stater Sports/Highwired Sports. DeMoney is a graduate of the University of Iowa School of Journalism, and a member of the Football Writers Association of America and the United States Basketball Writers Association.

About the National Prep Poll: Compiled weekly weekly since 1987 and distributed by World Features Syndicate and the Associated Press, the National Prep Poll is the nation's second oldest weekly high school sports rankings. Doug Huff of ESPN RISE compiled the rankings from 1987 until 1999. Jamie DeMoney has compiled the poll since the start of the 1999 basketball season. The National Prep Poll is the only high school poll distributed to newspapers and Web sites around the United States by the Associated Press national wire service. The National Prep Poll is the first high school football and boys basketball poll to released in the preseason and during each week of the regular season. Criteria considered for the National Prep Poll rankings are strength of schedule, the ability to accomplish the ultimate goal on a team's schedule (i.e. winning a championship), impact players and performers, a team's coaching and recent tradition.

Have something to say about the Week 17 National Prep Poll? Leave your comments and interact with poll editor Jamie DeMoney and other readers by clicking here.