| | Event type
Baseball, Men
| Date | 31 July – 7 August 1984 |
|---|---|
| Status | Olympic (non-medal) |
| Location | Dodger Stadium, Los Angeles, California |
| Participants | 153 from 8 countries |
Eight teams competed in 1984, with a round-robin that advanced the top four teams to the semi-finals. Japan and the United States advanced to the final, with Japan winning the final game and the tournament, 6-3. The United States team had several future Major League players, including Mark McGwire, Barry Larkin, Will Clark, Oddibe McDowell, and B. J. Surhoff. The tournament was weakened by the absence of Cuba, which joined the Soviet-led boycott of the 1984 Olympics, as Cuba was the world’s greatest amateur team in the 1980s.
Preliminary Round (31 July – 4 August 1984)
Group White (31 July – 4 August 1984)
| Pos | Competitor(s) | NOC | Won | Tied | Lost | Points | Runs For | RA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | United States |  USA | 3 | 0 | 0 | 6 | 30 | 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 | Chinese Taipei |  TPE | 2 | 0 | 1 | 4 | 24 | 3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | Italy |  ITA | 1 | 0 | 2 | 2 | 11 | 33 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | Dominican Republic |  DOM | 0 | 0 | 3 | 0 | 8 | 35 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Game #1 | ITA | 10 – 7 | DOM |
| Game #2 | USA | 2 – 1 | TPE |
| Game #3 | TPE | 13 – 1 | DOM |
| Game #4 | USA | 16 – 1 | ITA |
| Game #5 | USA | 12 – 0 | DOM |
| Game #6 | TPE | 10 – 0 | ITA |
Semi-Finals (6 August 1984)
| Game #1 |  JPN | 2 – 1 | TPE |
| Game #2 | USA | 5 – 2 |  KOR |
Group Blue (1 – 5 August 1984)
| Pos | Competitor(s) | NOC | Won | Tied | Lost | Points | Runs For | RA | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| 1 | Japan | JPN | 2 | 0 | 1 | 4 | 25 | 7 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 | Republic of Korea | KOR | 2 | 0 | 1 | 4 | 10 | 9 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 | Canada |  CAN | 1 | 0 | 2 | 2 | 10 | 11 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4 | Nicaragua |  NCA | 1 | 0 | 2 | 2 | 11 | 29 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Game #1 | NCA | 4 – 3 | CAN |
| Game #2 | JPN | 2 – 0 | KOR |
| Game #3 | KOR | 3 – 1 | CAN |
| Game #4 | JPN | 19 – 1 | NCA |
| Game #5 | CAN | 6 – 4 | JPN |
| Game #6 | KOR | 7 – 6 | NCA |
Final Round (7 August 1984)
| Game 1/2 | JPN | 6 – 3 | USA |
| Game 3/4 | TPE | 3 – 0 | KOR |