| Competition: | Liga Nacional de Ascenso |
| Season: | 2005 |
| Winners: | Policía Nacional |
| Prevseason: | 2004 |
| Nextseason: | 2006 |
The Primera A 2005 season (officially "Torneo Primera A 2005") started in April 2005 resulting Policia Nacional as winners and promoted to Anaprof, while CD Atalanta lost second promotion playoff series against Sporting '89.
11 teams participating divided into two groups.[1]
| Club | City | Stadium | Group | |
|---|---|---|---|---|
| A.D. Orión | San Miguelito | Estadio Bernardo Gil | Group B | |
| Atlético Guadalupe | La Chorrera | Estadio Agustín Sánchez | Group A | |
| Bocas FC | Changuinola | Group A | ||
| C.A.I. | La Chorrera | Estadio Agustín Sánchez | Group A | |
| C.D. Atalanta | Panama City | Group A | ||
| C.D. Pan de Azúcar | San Miguelito | Estadio Balboa | Group B | |
| Chepo F.C. | Chepo | Estadio José de la Luz Thompson | Group B | |
| Deportivo Italia | Panama City | Group B | ||
| Policía Nacional | Panama City | Group A | ||
| Río Abajo | Panama City | Group B | ||
| Sabanitas FC | Colón | Group B |
| Place | Team | Played | Won | Draw | Lost | Goals Scored | Goals Conceded | +/- (Dif.) | Points |
|---|---|---|---|---|---|---|---|---|---|
| 1. | Policía Nacional | 14 | 8 | 4 | 2 | 31 | 12 | +19 | 28 |
| 2. | C.D. Atalanta | 14 | 5 | 5 | 4 | 22 | 26 | -4 | 20 |
| 3. | C.A. Independiente | 14 | 3 | 5 | 6 | 17 | 24 | -7 | 14 |
| 4. | Bocas FC | 14 | 4 | 1 | 9 | 22 | 42 | -20 | 13 |
| 5. | Atl. Guadalupe | 14 | 2 | 5 | 7 | 13 | 23 | -10 | 11 |
| Place | Team | Played | Won | Draw | Lost | Goals Scored | Goals Conceded | +/- (Dif.) | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Chepo FC | 15 | 13 | 0 | 2 | 47 | 18 | +29 | 39 | |
| 2. | Deportivo Italia | 14 | 7 | 4 | 3 | 25 | 16 | +9 | 25 | |
| 3. | A.D. Orión | 15 | 7 | 3 | 5 | 24 | 22 | +2 | 24 | |
| 4. | Río Abajo FC | 15 | 6 | 1 | 8 | 23 | 26 | -3 | 19 | |
| 5. | C.D. Pan de Azucar | 14 | 6 | 0 | 8 | 20 | 26 | -6 | 18 | |
| 6. | Sabanitas FC | 15 | 2 | 4 | 9 | 17 | 26 | -9 | 10 |
| Place | Team | Played | Won | Draw | Lost | Goals Scored | Goals Conceded | +/- (Dif.) | Points | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Policia Nacional | 9 | 6 | 1 | 2 | 20 | 14 | +6 | 19 | |
| 2. | A.D. Orión | 9 | 5 | 3 | 1 | 10 | 7 | +3 | 18 | |
| 3. | C.D. Atalanta | 9 | 4 | 4 | 1 | 12 | 7 | +5 | 16 | |
| 4. | Chepo FC | 9 | 5 | 0 | 4 | 20 | 14 | +6 | 15 | |
| 5. | Deportivo Italia | 9 | 2 | 2 | 5 | 21 | 22 | -1 | 8 | |
| 6. | C.A. Independiente | 9 | 0 | 0 | 9 | 8 | 35 | -27 | 0 |
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| Primera A 2005 Champion: Policia Nacional |
C.D. Atalanta remain in Primera A