| Unofficial South American Championships in Athletics | |
| Size: | 200px |
| Events: | 24 |
| Level: | Senior |
| Previous: | 1947 Rio de Janeiro |
| Next: | 1949 Lima |
Unofficial South American Championships in Athletics (V Campeonato Extraordinario de Atletismo) were held in La Paz, Bolivia in October 1948. The event was held in celebration of the 400th anniversary of the foundation of the city of La Paz. The games were dominated by Bolivian athlete Julia Iriarte winning five gold, one silver and one bronze medal.
Medal winners are published.
| 100 metres | 10.6A | 10.7A | 11.0A | ||||
| 200 metres | 21.8A | 22.4A | 23.1A | ||||
| 400 metres | 50.5A | 50.9A | 51.0A | ||||
| 800 metres | 2:04.3A | 2:04.5A | 2:05.1A | ||||
| 110 metres hurdles | 14.8A | 15.3A | 15.4A | ||||
| 200 metres hurdles | 25.6A | 26.1A | 26.5A | ||||
| High jump | 1.90A | 1.85A | 1.80A | ||||
| Pole vault | 3.70A | 3.70A | 3.60A | ||||
| Long jump | 7.05A | 6.84A | 6.71A | ||||
| Triple jump | 14.65A | 14.22A | 13.72A | ||||
| Shot put | 13.50A | 11.40A | 11.30A | ||||
| Discus throw | 38.24A | 36.11A | 35.74A | ||||
| Hammer throw | 45.28A | 39.96A | 39.10A | ||||
| Javelin throw | 55.93A | 52.87A | 44.75A | ||||
| 4 × 100 metres relay | 42.8A | 43.2A | 44.4A | ||||
| 1922 | 3:26.3A | 3:26.4A | 3:31.2A |
| 100 metres | 13.1A | 13.2A | 13.3A | ||||
| 200 metres | 26.1A | 27.2A | 27.9A | ||||
| 80 metres hurdles | 12.1A | 13.8A | 14.7A | ||||
| High jump | 1.45A | 1.40A | 1.40A | ||||
| Long jump | 5.04A | 5.01A | 4.85A | ||||
| Shot put | 10.94A | 10.11A | 8.22A | ||||
| Discus throw | 33.66A | 33.54A | 24.33A | ||||
| Javelin throw | 32.16A | 26.28A | 18.50A |