| Boys Baseball Class A Bracket | 1998-99 |
| The Road to Springfield | ||||||
| Regional Finals | Sectionals | State Final Tournament | State Champion | |||
| (1) Alton (Marquette) | Alton (Marquette) 13-0 (5 inn) |
Chester 5-2 |
Nashville 4-1 |
Metropolis (Massac County) 11-10 |
Herscher 10-3 |
Herscher 8-3 |
| (2) Roxana | ||||||
| (1) Chester | Chester 11-1 |
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| (3) Campbell Hill (Trico) | ||||||
| (1) Columbia | Columbia 7-5 |
Nashville 11-0 (5 inns) |
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| (7) New Athens | ||||||
| (1) Nashville | Nashville 13-8 |
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| (2) Farina (South Central) | ||||||
| (4) Eldorado | Eldorado 8-5 |
Olney (East Richland) 12-1 |
Metropolis (Massac County) 13-3 |
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| (3) Grayville | ||||||
| (1) Olney (East Richland) | Olney (East Richland) 15-2 (5 inn) |
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| (3) Mt. Carmel | ||||||
| (5) West Frankfort (Frankfort) | Herrin 11-7 |
Metropolis (Massac County) 8-3 |
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| (2) Herrin | ||||||
| (4) Vienna | Metropolis (Massac County) 10-5 |
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| (2) Metropolis (Massac County) | ||||||
| (4) Addison (Driscoll) | Addison (Driscoll) 6-5 (8 inn) |
Addison (Driscoll) 15-1 (5 inns) |
Addison (Driscoll) 7-4 |
Herscher 4-3 |
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| (7) Elmhurst (Timothy Christian) | ||||||
| (1) Byron | Byron 12-6 |
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| (6) Woodstock (Marian) | ||||||
| (1) Palos Heights (Chicago Christian) | Palos Heights (Chicago Christian) 5-3 |
Palos Heights (Chicago Christian) 12-6 |
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| (2) Lansing (Illiana Christian) | ||||||
| (1) Wheaton (St. Francis) | Yorkville 5-4 |
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| (6) Yorkville | ||||||
| (1) Herscher | Herscher 8-7 (9 inn) |
Herscher 5-0 |
Herscher 9-4 |
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| (2) Fairbury (Prairie Central) | ||||||
| (1) Coal City | Kankakee (McNamara) 3-2 |
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| (2) Kankakee (McNamara) | ||||||
| (4) St. Joseph (S.J.-Ogden) | Armstrong 8-1 |
Normal (University) 10-2 |
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| (2) Armstrong | ||||||
| (1) Normal (University) | Normal (University) 8-2 |
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| (2) Lexington | ||||||
| (1) Farmington | Farmington 10-3 |
Stanford (Olympia) 9-8 |
Stanford (Olympia) 16-3 (5 Innings) |
Ottawa (Marquette) 4-3 |
Teutopolis 6-4 |
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| (2) Lewistown | ||||||
| (1) Stanford (Olympia) | Stanford (Olympia) 6-3 |
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| (3) Manito (Midwest Central) | ||||||
| (1) Stronghurst (Southern) | Stronghurst (Southern) 8-1 |
Quincy (Notre Dame) 9-4 |
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| (6) Mendon (Unity) | ||||||
| (1) Rushville | Quincy (Notre Dame) 10-0 (5 inn) |
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| (3) Quincy (Notre Dame) | ||||||
| (1) East Dubuque | Oregon 4-0 |
Kewanee (Wethersfield) 4-3 |
Ottawa (Marquette) 6-2 |
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| (3) Oregon | ||||||
| (4) Kewanee (Wethersfield) | Kewanee (Wethersfield) 17-14 |
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| (3) Dunlap | ||||||
| (1) Ottawa (Marquette) | Ottawa (Marquette) 3-2 |
Ottawa (Marquette) 10-7 |
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| (6) Peru (St. Bede) | ||||||
| (1) Rock Island (Alleman) | Rock Island (Alleman) 10-0 (5 inn) |
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| (6) Port Byron (Riverdale) | ||||||
| (1) Pleasant Plains | Pleasant Plains 12-4 |
Pleasant Plains 9-1 |
Pleasant Plains 11-7 |
Teutopolis 3-2 (8 inn.) |
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| (3) Williamsville | ||||||
| (1) Gillespie | Carlinville 13-3 (6 inn) |
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| (3) Carlinville | ||||||
| (1) Piasa (Southwestern) | Piasa (Southwestern) 19-10 |
Morrisonville (Coop) 11-7 |
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| (2) Jacksonville (Routt) | ||||||
| (4) Warrensburg (W.-Latham) | Morrisonville (Coop) 4-2 |
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| (3) Morrisonville (Coop) | ||||||
| (1) Newton | Newton 12-0 |
Teutopolis 17-11 |
Teutopolis 11-10 |
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| (2) Kansas (Coop) | ||||||
| (1) Teutopolis | Teutopolis 2-0 |
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| (2) Strasburg (Stewardson-S.) | ||||||
| (1) Mt. Zion | Mt. Zion 17-4 ( 6 inn) |
Mt. Zion 14-10 |
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| (2) Argenta (A.-Oreana) | ||||||
| (1) Sullivan | Sullivan 10-0 (5 inn) |
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| (2) Villa Grove | ||||||