| | 2004 BOSS Winners Report |
| Place | Subcategory | Name | City | Club |
| | AMERICAN PALE ALES |
| 1ST | 100 | California Common Beer | Michael Uchima | Naperville, IL | Urban Knaves of Grain (UKG) |
| 2ND | 096 | American Amber Ale | Jeff Carlson | Grand Rapids, MI | Primetime Brewers |
| 3RD | 140 | American Amber Ale | Therese Vetvick | Bolingbrook, IL | Urban Knaves of Grain (UKG) |
| | BARLEYWINES |
| 1ST | BOS2 | 085 | Russian Imperial Stout | Curt & Kathy Stock | St. Paul, MN | St. Paul Homebrewers Club |
| 2ND | 059 | Strong Scotch Ale (Wee | Pat Hall | Monee, IL | BOSS |
| 3RD | 128 | English-style Barleywine | Gregg Ferlin | New Lenox, IL | BOSS |
| | BELGIAN AND FRENCH ALE |
| 1ST | 134 | Straight (Unblended) Lambic- | Eric Duske | Willow Springs, IL | Urban Knaves of Grain (UKG) |
| 2ND | 018 | Witbier | Jay Lubinsky | Orland Park, IL | BOSS |
| 3RD | 150 | Belgian Specialty Ale | Rodney Kibzey & Liz Lerch | Lombard, IL | Urban Knaves of Grain (UKG) |
| | BROWN ALES |
| 1ST | 040 | Northern English Brown Ale | Chris Grib | Frankfort, IL | BOSS |
| 2ND | 130 | American Brown Ale | Ron Stazuk | Palos Hills, IL | Urban Knaves of Grain (UKG) |
| 3RD | 094 | Southern English Brown | Jeff Carlson | Grand Rapids, MI | Primetime Brewers |
| | CIDERS |
| 1ST | 106 | Standard Cider and Perry | Ron Stazuk | Palos Hills, IL | Urban Knaves of Grain (UKG) |
| 2ND | BOM1 | 093 | Specialty Cider and Perry | Jeff Carlson | Grand Rapids, MI | Primetime Brewers |
| 3RD | 079 | Standard Cider and Perry | Jerry & Tom Sadowski & Conrad | Crete, IL | BOSS |
| | ENGLISH & SCOTTISH ALES |
| 1ST | 074 | Export 80 | Kirk Rowland | Redford, MI |
| 2ND | 086 | Strong Bitter/English Pale | Curt & Kathy Stock | St. Paul, MN | St. Paul Homebrewers Club |
| 3RD | 117 | Ordinary Bitter | Mike Mandichak | Flossmoor, IL |
| | EUROPEAN LAGERS AND BOCKS |
| 1ST | 043 | Vienna Lager | Jerry & Tom Sadowski & Conrad | Crete, IL | BOSS |
| 2ND | 151 | Traditional Bock | Rodney Kibzey & Liz Lerch | Lombard, IL | Urban Knaves of Grain (UKG) |
| 3RD | 090 | Traditional Bock | John Blichmann | Lafayette, IN | Tippecanoe Homebrewers Circle |