Here are some last-minute predictions...

...for Round One of the top four classes (upsets in bold):

8A

Loyola over Lane Tech
Fremd over Notre Dame
Oak Park River Forest over Dundee-Crown
Maine South over Niles West
Barrington over Evanston
Warren over Glenbrook South
Glenbard North over New Trier
Stevenson over St. Charles East
Bolingbrook over Bloom
Marist over Plainfield South
Oswego over Hinsdale Central
Waubonsie Valley over Naperville North
Homewood-Flossmoor over Sandburg
Naperville Central over Downers Grove South
Neuqua Valley over O'Fallon
Lyons over Simeon

7A

Lake Zurich over Elk Grove Village
Hononegah over Highland Park
Fenwick over Hersey
Wheaton North over Glenbrook North
Schaumburg over Schurz
Geneva over St. Patrick
Glenbard West over Harlem
Jacobs over Conant
Downers Grove North over Whitney Young
Wheaton Warrenville South over Dunbar
Mount Carmel over Benet
St. Rita over Willowbrook
Edwardsville over Andrew
Bradley-Bourbonnais over Pekin
Belleville West over Oswego East
Lincoln-Way East over Plainfield East

6A

Boylan over Belvidere North
Cary-Grove over Guilford
Prairie Ridge over Lakes
Marmion over Fenton
Batavia over DeKalb
Rolling Meadows over Grayslake North
Crystal Lake Central over De La Salle
Lake Forest over Hubbard
Richards over Yorkville
Argo over Oak Forest
Lincoln-Way North over Thornton Fractional South
Rich Central over Romeoville
Providence over Crete-Monee
Rock Island over Quincy
Normal over Bloomington
Normal West over East St. Louis

5A

Montini over Morgan Park
Bremen over Marian Central
Joliet Catholic over Englewood
Kaneland over Hampshire
Sycamore over Antioch
Nazareth over Brooks
St. Francis over Glenbard South
Lincoln-Way West over Bronzeville
Sacred Heart-Griffin over Richwoods
Notre Dame over Glenwood
Highland over Carbondale
Limestone over Jersey
Washington over Peoria
Mattoon over Mount Vernon
Normal over MacArthur
Marion over Jacksonville