He soon established himself as an impact player, appearing in 41 LBL games, averaging 2.9 points, 4.6 rebounds and 1.32 blocks, while shooting 59.8% from the field.

In his second year, Biedriņš appeared in 28 LBL games, averaging 18.0 points, 8.9 rebounds, 1.3 assists and 1.86 blocks, while shooting 61.5% from the field.

Biedriņš thrived in his new role, posting impressive averages of 10.3 points on an incredible .621 field goal percentage (1st in the NBA), 9.5 rebounds and 1.9 blocks per game and earning himself 28.9 minutes of playing time.

Additionally, Warriors coach Don Nelson repeatedly criticized Biedriņš for his lack of intensity and aggressiveness in his time on the floor.

However, the injury bug bit again, derailing Biedriņš from mid-December 2010 to early January 2011, and once again he found it difficult to regain his previous form.

Biedriņš's slumping play and persistent foul issues convinced Smart to bench him in favor of rookie Ekpe Udoh for four games in March.

Biedriņš's averages for the 2010–11 season amounted to five points, 7.2 rebounds and 0.9 blocks (both a drop from 2009–10) on 53.4% field goal shooting and a modestly improved 32.3% free throw accuracy.

In the wake of the lockout which took away much of the 2011 NBA offseason and shortened the league's schedule considerably, the Warriors made a push to acquire restricted free agent DeAndre Jordan, who would have automatically taken over as the starting center for Golden State.

A March 13 trade which shipped Udoh, Brown and Monta Ellis to the Milwaukee Bucks for Stephen Jackson and the out-for-the-season Andrew Bogut thrust Biedriņš back into the starting lineup, where he remained until Jackson decided to give rookie Jeremy Tyler a chance to prove himself at the beginning of April.

On July 5, 2013, the Warriors reportedly agreed to trade Biedriņš to the Utah Jazz along with teammates Brandon Rush and Richard Jefferson in an attempt to clear salary cap space to acquire coveted free agent Andre Iguodala.

In 2001, the then-15-year-old Biedriņš was a member of the Latvian national team at the Euro Cadet Championship, where he finished 4th in scoring (16.3 ppg) and 3rd in rebounding (8.5 rpg).

In a match against France, he played against fellow future NBA player Johan Petro, and Biedriņš scored 21 points and 16 rebounds.

He was active in the Warriors community programs during his rookie season, participated in the team's Thanksgiving Food Serving at Patrick David's Cafe in Danville, California, hosted a half-time holiday party for underprivileged children at the Warriors game versus Memphis on December 22, attended the Warriors Kids Day celebration, as well as the Run With TMC Fantasy Camp reception, and also visited injured American troops just back from Iraq at the National Naval Medical Center outside of Washington, D.C., when the team was in the area in early March.