The 2005 WNBA season was their seventh season and their third in Connecticut. The Sun attempted to return to the postseason for the third consecutive season and were successful. They also attempted to return to the WNBA Finals for the second consecutive year and were successful.
In the first round of the Eastern Conference Playoffs, the Sun had to face the Detroit Shock. Since the Sun had the better record, the series would be played with game 1 at Detroit, game 2 at Connecticut, and game 3 (if needed) at Connecticut. Even though Detroit had won three of the four regular season meetings, the Sun swept the Shock and game 3 was not needed.
In the second round of the Eastern Conference Playoffs, the Sun had to face the Indiana Fever. Again, the Sun had the better record and the series would be played with game 1 at Indiana and games 2 and 3 (if needed) at Connecticut. The Sun swept the Fever and game 3 was not needed.
The Sun advanced to the WNBA Finals. The team would be facing off against the Sacramento Monarchs. The Sun had the better record so the series would be played with games 1, 2, and 5 at Connecticut and games 3 and 4 at Sacramento. In the regular season, the Sun had beaten the Monarchs in both meetings. It was not enough, however. The Monarchs beat the Sun 3 games to 1 to win the WNBA Finals.
For the third consecutive season, the Sun qualify for the Eastern Conference Playoffs.
For the third consecutive season, the Sun advance to the Eastern Conference Finals.
For the second consecutive season, the Sun advance to the WNBA Finals.