IRVINE, Calif. (Interstat) — Carson Turnquist threw six no-hit innings and Cal Poly’s bullpen closed the door as the Mustangs defeated UC Santa Barbara 4-2 on Friday evening at the Big West Baseball Championship.

Turnquist, a right-hander who had won his previous two starts against Long Beach State and Cal State Fullerton, struck out seven and allowed two earned runs despite not surrendering a hit. He walked four and hit a batter, with both Gaucho runs scoring on a bases-loaded walk in the first inning and a run-scoring single in the fourth.

Cal Poly improved to 35-21 with the win, while UC Santa Barbara fell to 38-17.

The Mustangs struck first in the second inning after Evan Spiridonoff doubled and Cam Hoiland singled. Ryan Vachini’s sacrifice bunt brought home Spiridonoff to tie the game 1-1.

UC Santa Barbara answered in the fourth when Jack Mendez walked, advanced on a Husovsky walk and scored on a Karliner single up the middle to give the Gauchos a 2-1 lead.

Cal Poly tied the game in the sixth. Jake Downing singled, stole second and scored on a sacrifice fly by pinch-hitter Ryan McLaurin.

The Mustangs took the lead for good in the seventh. After Anthony Garza reached on a fielding error by UC Santa Barbara second baseman William Vasseur, Downing singled to left field to drive in Garza, who had advanced on a walk to Trevor Murray Jr.

Cal Poly added an insurance run in the eighth when Hoiland doubled to left center and Nate Castellon singled up the middle to score him.

Turnquist worked around five walks and a hit batter to keep the Gauchos off the board after the first inning. He struck out the side in the sixth.

Brady Estes replaced Turnquist in the seventh and pitched two hitless innings, striking out two. Nick Bonn pitched a scoreless ninth with one strikeout to earn the save.

Hoiland went 4 for 4 at the plate with two doubles and two runs scored. Downing finished 2 for 5 with an RBI. Spiridonoff added a double and a run.

Calvin Proskey started for UC Santa Barbara and allowed two earned runs on eight hits over 5 1/3 innings with three strikeouts. AJ Krodel struck out four in two hitless innings of relief. Chase Hoover gave up one unearned run on three hits in 1 2/3 innings.

Vasseur drove in the Gauchos’ first run with a bases-loaded walk in the first inning and doubled in the fifth. Karliner went 1 for 4 with an RBI.

The game was the third meeting this season between the two Big West rivals. UC Santa Barbara swept a three-game series at Cal Poly on April 2-4, winning 6-0, 4-2 and 12-4.

In the latest head-to-head before Friday, the Gauchos had taken each of the previous three matchups. Cal Poly’s victory evened the season series at three games apiece.

The Mustangs entered the championship after a 1-0 win over UC San Diego on Thursday. UC Santa Barbara beat Cal State Fullerton 7-4 in its tournament opener.

Cal Poly’s offense finished with 12 hits, while UC Santa Barbara managed six. The Mustangs stranded 10 runners, and the Gauchos left nine on base.