The Terps are the No. 3 seed in the Greenville Region and will face Charlotte on Friday.
Tyler Blohm and Elliot Zoellner hope to come back strong after a shortened season.
“It was frustration, anger, sadness, every range of emotion you can imagine."
Cowles powered the Terps' offense past the Blue Hens with two extra-base hits — one being a homer.
"We just gave them too much," Maryland coach Rob Vaughn said.
The Terps managed four hits.
Sean Fisher went 6 ⅓ innings, striking out four and walking one.
Flint leads the team through three games with six hits.
The Terps started two first-year pitchers during the first weekend of the season.
Sean Fisher struck out five in 5.1 innings in his first career start.