On March 10, 2015, the 49ers re-signed Gabbert to a two-year, $2 million deal.
Going into the 2015 season, he had a new head coach in Jim Tomsula.
On November 2, 2015, he was named starter for the 49ers after Colin Kaepernick was benched.
On November 8, 2015, Gabbert made his first start since October 2013, leading the 49ers to a 17–16 victory over the Atlanta Falcons.
He completed 15 of 25 passes for 185 yards with 2 touchdowns and 2 interceptions.
On November 9, 2015, it was announced that Gabbert would remain the starter when the 49ers played the Seattle Seahawks on November 22.
The 49ers lost 29–13, with Gabbert completing 22 of 34 passes for 264 yards and a touchdown with a 98.2 passer rating.
With the 49ers down 20–13 against the Chicago Bears late in the fourth quarter on December 6, 2015, Gabbert rushed for a 44-yard touchdown, the first rushing touchdown of his career.
He then threw a 71-yard game-winning touchdown to Torrey Smith in overtime for a 26–20 49ers victory.
Gabbert finished the 2015 season with 2,031 passing yards with 10 touchdowns and 7 interceptions for an 86.2 passer rating.
In 8 games as a starter, he had a 3–5 record.
On March 10, 2015, the 49ers re-signed Gabbert to a two-year, $2 million deal. Going into the 2015 season, he had a new head coach in Jim Tomsula. On November 2, 2015, he was named starter for the 49ers after Colin Kaepernick was benched. On November 8, 2015, Gabbert made his first start since October 2013, leading the 49ers to a 17–16 victory over the Atlanta Falcons. He completed 15 of 25 passes for 185 yards with 2 touchdowns and 2 interceptions. On November 9, 2015, it was announced that Gabbert would remain the starter when the 49ers played the Seattle Seahawks on November 22. The 49ers lost 29–13, with Gabbert completing 22 of 34 passes for 264 yards and a touchdown with a 98.2 passer rating. With the 49ers down 20–13 against the Chicago Bears late in the fourth quarter on December 6, 2015, Gabbert rushed for a 44-yard touchdown, the first rushing touchdown of his career. He then threw a 71-yard game-winning touchdown to Torrey Smith in overtime for a 26–20 49ers victory. Gabbert finished the 2015 season with 2,031 passing yards with 10 touchdowns and 7 interceptions for an 86.2 passer rating. In 8 games as a starter, he had a 3–5 record.
Blaine Gabbert