The 1970 Big League World Series took place from August 17–22 in Fort Lauderdale, Florida, United States. Lincolnwood, Illinois defeated San Fernando/Simi Valley, California twice in the championship game. This was the first BLWS held in Fort Lauderdale.
| Tournament details | |
|---|---|
| Country | United States |
| City | Fort Lauderdale, Florida |
| Dates | 17–22 August 1970 (1970-08-17 – 1970-08-22) |
| Teams | 8 |
| Final positions | |
| Champions |  Lincolnwood, Illinois |
| Runner-up |  San Fernando/Simi Valley, California |
← 1969
1971 →
| |
This year marked the first appearance for the European, and Latin American regions.
| United States | International |
|---|---|
 Fort Lauderdale, FloridaHost |
 Thunder Bay, OntarioFort William Canada |
 New Hyde Park, New YorkEast |
 Rhineland-Palatinate, West GermanyRamstein Air Base Europe |
| Lincolnwood, Illinois North |
 San Juan, Puerto RicoLatin America |
 Charleston, West VirginiaCharleston East South |
|
| San Fernando/Simi Valley, California North Valleys West |
| Upper round 1 | Upper round 2 | Upper final | Championship | |||||||||||||||||||||
| — | New York | 5 | ||||||||||||||||||||||
| — | West Virginia (F/9) | 6 | ||||||||||||||||||||||
| 1–0 | Illinois | 10 | ||||||||||||||||||||||
| 1–0 | West Virginia | 5 | ||||||||||||||||||||||
| — | Illinois | 9 | ||||||||||||||||||||||
| — | West Germany | 0 | ||||||||||||||||||||||
| 2–0 | Illinois | 2 | ||||||||||||||||||||||
| 2–0 | California | 4 | ||||||||||||||||||||||
| — | Puerto Rico | 1 | ||||||||||||||||||||||
| — | California | 3 | ||||||||||||||||||||||
| 1–0 | California | 6 | ||||||||||||||||||||||
| 1–0 | Florida | 0 | ||||||||||||||||||||||
| — | Florida | |||||||||||||||||||||||
| — | Canada | 3–0 | California | 0 | 5 | |||||||||||||||||||
| 3–1 | Illinois | 6 | 10 | |||||||||||||||||||||
| Lower round 1 | Lower round 2 | Lower round 3 | Lower final | |||||||||||||||||||||
| 1–1 | West Virginia | 1 | ||||||||||||||||||||||
| 0–1 | New York | 17 | 1–1 | New York | 4 | 2–1 | Illinois | 8 | ||||||||||||||||
| 0–1 | West Germany | 3 | 2–1 | New York | 5 | 3–1 | New York | 5 | ||||||||||||||||
| 2–1 | Puerto Rico | 3 | ||||||||||||||||||||||
| 1–1 | Florida | 1 | ||||||||||||||||||||||
| 0–1 | Puerto Rico | 7 | 1–1 | Puerto Rico | 3 | |||||||||||||||||||
| 0–1 | Canada | 0 | ||||||||||||||||||||||
| 1970 Big League World Series Champions |
|---|
 Lincolnwood, Illinois |