# NCAA Season 81

NCAA Season 81 was the 2005–06 season of the National Collegiate Athletic Association (Philippines). Colegio de San Juan de Letran was the season's host.
To usher in the new season, Letran and the other NCAA member schools performed the opening ceremonies at the Araneta Coliseum, followed by four basketball games on June 25, 2005. Other disciplines started their own tournaments within the following months, with beach volleyball as the last tournament on mid-March.
De La Salle-College of Saint Benilde won its first General Championship honors for the Seniors division, while the San Sebastian Recoletos High School won its second Juniors General Championship, via tiebreakers, when La Salle Green Hills emerged with an equal number of points.

## Basketball
### Seniors' tournament
#### Elimination round

| Pos | Teamvte | W | L | PCT | GB | Qualification |
| 1 | Letran Knights (H) | 13 | 1 | .929 | — | Twice-to-beat in the semifinals |
| 2 | PCU Dolphins | 10 | 4 | .714 | 3 | Twice-to-beat in the semifinals |
| 3 | Mapúa Cardinals | 9 | 5 | .643 | 4 | Twice-to-win in the semifinals |
| 4 | San Sebastian Stags | 7 | 7 | .500 | 6 | Twice-to-win in the semifinals |
| 5 | Perpetual Altas | 6 | 8 | .429 | 7 | |
| 6 | Benilde Blazers | 5 | 9 | .357 | 8 | |
| 7 | San Beda Red Lions | 4 | 10 | .286 | 9 | |
| 8 | JRU Heavy Bombers | 2 | 12 | .143 | 11 | |

#### Playoffs

| Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Finals (Best-of-three series) | Finals (Best-of-three series) | Finals (Best-of-three series) | Finals (Best-of-three series) | Finals (Best-of-three series) |
| 1 | Letran | 93 | | | | | |
| 4 | San Sebastian | 60 | | | | | |
| 4 | San Sebastian | 60 | 1 | Letran | 74 | 78 | 62 |
| | | | 2 | PCU | 79 | 60 | 54 |
| 2 | PCU | 76 | 2 | PCU | 79 | 60 | 54 |
| 3 | Mapúa | 53 | | | | | |

#### Individual awards

* Most Valuable Player: Ernie Jay Sagad (CSB)
* Rookie of the Year: Kelvin dela Peña (Mapua)

### Juniors' tournament
#### Elimination round

| Pos | Teamvte | W | L | PCT | GB | Qualification |
| 1 | San Sebastian Staglets | 11 | 1 | .917 | — | Twice-to-beat in the semifinals |
| 2 | San Beda Red Cubs | 10 | 2 | .833 | 1 | Twice-to-beat in the semifinals |
| 3 | PCU Baby Dolphins | 7 | 5 | .583 | 4 | Twice-to-win in the semifinals |
| 4 | JRU Light Bombers | 7 | 5 | .583 | 4 | Twice-to-win in the semifinals |
| 5 | La Salle Green Hills Greenies | 5 | 7 | .417 | 6 | |
| 6 | Perpetual Altalettes | 2 | 10 | .167 | 9 | |
| 7 | Letran Squires (H) | 0 | 12 | .000 | 11 | |
* 1 2 Third-seed playoff: PCU 96–90 JRU
* ↑ All of Letran's wins were forfeited when a player was found to have played in a ligang labas game.

#### Playoffs

| Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Semifinals (Nos. 1 & 2 have twice-to-beat advantage) | Finals (Best-of-three series) | Finals (Best-of-three series) | Finals (Best-of-three series) | Finals (Best-of-three series) |
| 1 | San Sebastian | 95 | | | | |
| 4 | JRU | 82 | | | | |
| 4 | JRU | 82 | 1 | San Sebastian | 83 | 81 |
| | | | 2 | San Beda | 76 | 69 |
| 2 | San Beda | 80 | 2 | San Beda | 76 | 69 |
| 3 | PCU | 73 | | | | |

#### Individual awards

* Most Valuable Player: Allan Mangahas (PCU-Union)
* Rookie of the Year: Darell Green (Letran)

## Other sports and General Championship
### Championship results

Arranged by order of conclusion:
¹ Not a part in the tabulation of the General Championship

### General Championship

¹ Since San Sebastian had more championships (4) than LSGH (3), San Sebastian won the General Championship, despite being tied for first place. ² Mapua did not send representatives in the Juniors division