Tolleson picked up his 13th save of season Friday, throwing a scoreless ninth inning in a 4-3 win over the Padres. The 27-year-old made things interesting, allowing a leadoff single to Will Venable and a walk to Yander Alonso, but ultimately struck out Matt Kemp on a high fastball to end the contest. Tolleson has allowed just one run in his last eight appearances and seems to have a firm grasp on the closer role.

Tolleson gave up a run on a hit and a walk Tuesday against the Orioles but still notched his 11th save of the season. He still got the save, so it would appear that his job is safe. The run came after J.J. Hardy reached base on a walk and was then driven in by Travis Snider. Tolleson's overall numbers still compare favorably to those of Tanner Scheppers and Keone Kela, who pitched perfect innings Tuesday prior to Tolleson getting the ball in the ninth.

Tolleson pitched a scoreless ninth inning to earn his 10th save of the season Friday against the White Sox. The 27-year-old capped off a come-from-behind victory with another strong appearance and is now 10-for-10 in save opportunities. Tolleson also has a 2.53 ERA and is striking out more than a batter per inning, making him a strong fantasy option now that he has officially been named the Rangers' closer.

Tolleson was unavailable for action Wednesday after having pitched in three straight games. Keone Kela pitched the ninth to notch his first major-league save, but Tolleson is in no danger of losing his grip on the closers' role for the foreseeable future.

Rangers manager Jeff Banister officially named Tolleson the team's closer Tuesday, the Dallas Morning News reports. "He's closed enough games out for us to be called the closer," Banister said. "I'm comfortable with giving him the closer's position." This was little more than a formality at this point, as Tolleson has gone 9-for-9 in save opportunities since unofficially taking over in the ninth inning last month. It's still worth noting, though, as Banister had seemed intent on going without set roles after Neftali Feliz was removed as closer. Tolleson is averaging better than a strikeout per inning this season but has recorded just three punchouts in his last eight appearances.

Tolleson earned his ninth save Monday as he worked around a hit to retire the Dodgers in the ninth. He struck out one. Tolleson issued just his fifth walk in Sunday's outing against the Twins, in which he suffered his first loss and allowed a run on two hits. Tolleson now owns a 1.48 BB/9 after working through Tuesday's outing without a walk; he has yet to issue walks in consecutive outings this season. Maintaining this control will be critical to his success. He walked 3.5 batters per nine innings in 64 games in 2014.

Tolleson took the loss Sunday against the Twins as he allowed a run on two hits and a walk after entering a tie game in the ninth. It was just the second time in 16 appearances that the right-hander has been scored upon, and he still holds a 2.76 ERA on the season. Tolleson is still not officially referred to as the team's "closer," but has been given virtually every high-leverage appearance for the last month, converting all eight save opportunities he's seen, and is the arm to own in the Texas bullpen.

Tolleson worked around a hit to record his eighth save Tuesday against Oakland. A brilliant season continues for Tolleson, who is perfect in save situations. He has given up just one run in 20 appearances dating back to May 20th (0.42 ERA).

Tolleson gave up two hits, including a solo home run to Salvador Perez, and struck out one Saturday en route to his seventh save of the season. He went nearly an entire calendar month without allowing a run to score. Tolleson continues to solidify his hold on the Rangers' closer gig, and now sports a 2.73 ERA, 0.99 WHIP and 32:4 K:BB ratio through 26.1 innings.

Tolleson pitched a clean ninth inning to register his sixth save as Texas downed the Red Sox 7-4 Friday night. Tolleson has provided stability at the back end of the Ranger's bullpen, and is now 6-for-6 in save opportunities and carries a solid 2.70 ERA. Each quality outing solidifies his hold on the closer's gig.