The Lancers, who have won nine of 10, improve to 35-10 overall, 22-8 GSAC, moving one step closer to their second straight GSAC title holding a game and a half lead with six left.
Meanwhile, Vanguard, which is fighting for its playoff life, falls to 17-22, 13-17 and is now 2.5 games behind Concordia for the sixth and final playoff spot. The Lions have lost six straight and 22 of 23 to CBU.
Arreola (5-3) was dominant in his third straight Thursday start.
He threw 112 pitches in 8.1 shutout frames, carrying a one-hitter into the seventh. He finished scattering four hits and walking two while striking out four. In his past 35.2 innings, the left has allowed just four earned runs, a 1.02 ERA in that span.
"Since Jesse has stepped into the Thursday spot, he has given us great starts," said CBU Head Coach Gary Adcock. "He was hitting both sides of the plate with his fastball, encouraging contact and pitching with a good tempo. He is giving us a chance to save our bullpen for the weekend."
While he was keeping the Lions off balance, Daugherty and the Lancer bats came alive against a trio of Vanguard pitchers.
In just his fourth start in the past 17 games, Daugherty was 3-for-4, his first multi-hit game since Feb. 8 at Cal State L.A., and he belted his second homer in a week, a solo shot that cleared the netting in left field and gave the Lancers a 2-0 lead in the top of the second against starter Corey Kohnke (0-3), who lasted just 1.2 innings.
He also had an RBI single in the Lancers' three-run fifth and then completed the Lancers' scoring with an RBI single up the middle in the eighth. It was the Lancers' second straight seven-run outing.
"(Assistant) Coach (Matt) Parker has been working a lot with Matt and it's starting to pay off," said Adcock. "He had a great fall and was a middle of the order hitter opening up the season. He's that type of talent. Hopefully this type of game and the work he's put in will boost his confidence, springboard him and give us lift offensively. We believe in him as a hitter, and today he made us look smart."
For the second consecutive day, Drew Madrigal came up clutch in a pinch-hitting role. With the Lancers holding to a slim 3-0 lead in the fifth, Madrigal followed Daugherty's run-scoring single with a two-run single through the right side of a drawn in infield to increase the margin to 5-0.
Sharif Othman, who collected his 200th career hit yesterday, added two more to his career total today, going 2-for-5. Matt Marnati, who had the game-winning single in yesterday's walk-off win, was also 2-for-5.