| Boys Baseball Class AA Bracket | 1997-98 |
| Tinley Park (Andrew) Sectional | ||||||
| Regionals | Sectionals | State Qualifier | ||||
| (1) Chicago (Mt. Carmel) | (1) Chicago (Mt. Carmel) 8-3 |
(1) Chicago (Mt. Carmel) 9-3 |
Chicago (Mt. Carmel) 15-3 (5 inn.) |
Oak Forest 6-4 |
Tinley Park (Andrew) 3-0 |
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| (8) Summit (Argo) | ||||||
| (4) Chicago (DeLaSalle) | (5) Chicago (Brother Rice) 6-5 |
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| (5) Chicago (Brother Rice) | ||||||
| (2) Burbank (Reavis) | (2) Burbank (Reavis) 14-4 (5 inn.) |
(3) Chicago (St. Rita) 9-8 |
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| (7) Oak Lawn (Community) | ||||||
| (3) Chicago (St. Rita) | (3) Chicago (St. Rita) 5-1 |
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| (6) Burbank (St. Laurence) | ||||||
| (1) Orland Park (Sandburg) | (1) Orland Park (Sandburg) 17-4 (5 inn.) |
(4) Oak Forest 6-4 |
Oak Forest 6-5 |
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| (8) Palos Heights (Shepard) | ||||||
| (4) Oak Forest | (4) Oak Forest 14-10 |
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| (5) Midlothian (Bremen) | ||||||
| (2) Chicago (Marist) | (2) Chicago (Marist) 13-6 |
(3) Oak Lawn (Richards) 8-2 |
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| (7) Palos Hills (Stagg) | ||||||
| (3) Oak Lawn (Richards) | (3) Oak Lawn (Richards) 11-1 (5 inn.) |
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| (6) Blue Island (Eisenhower) | ||||||
| (1) Tinley Park (Andrew) | (1) Tinley Park (Andrew) 32-0 (5 inn.) |
(1) Tinley Park (Andrew) 3-2 |
Tinley Park (Andrew) 6-1 |
Tinley Park (Andrew) 13-1 (5 inn.) |
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| (8) Olympia Fields (Rich Central) | ||||||
| (4) Park Forest (Rich East) | (5) New Lenox (Lincoln-Way) 15-4 (6 inn.) |
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| (5) New Lenox (Lincoln-Way) | ||||||
| (2) New Lenox (Providence) | (2) New Lenox (Providence) 14-4 (5 inn.) |
(2) New Lenox (Providence) 11-7 |
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| (7) Crete (C.-Monee) | ||||||
| (3) Richton Park (Rich South) | (3) Richton Park (Rich South) 7-2 |
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| (6) Chicago Heights (Bloom Twp.) | ||||||
| (1) Lansing (Thornton Fractional South) | (1) Lansing (Thornton Fractional South) 12-1 (5 inn.) |
(5) Chicago Heights (Marian) 5-1 (9 inn.) |
Tinley Park (H.S.) 5-1 |
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| (8) Dolton (Thornridge) | (8) Dolton (Thornridge) 7-5 |
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| (9) Country Club Hills (Hillcrest) | ||||||
| (4) Calumet City (Thornton Fractional North) | (5) Chicago Heights (Marian) 4-3 (8 inn.) |
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| (5) Chicago Heights (Marian) | ||||||
| (2) Flossmoor (Homewood-F.) | (2) Flossmoor (Homewood-F.) 17-1 (5 inn.) |
(6) Tinley Park (H.S.) 10-9 (8 inn.) |
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| (7) Harvey (Thornton) | ||||||
| (3) South Holland (Thornwood) | (6) Tinley Park (H.S.) 5-4 |
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| (6) Tinley Park (H.S.) | ||||||