He had big plays from his offense, but also his first-team defense only gave up two scores on nine possessions.
"I was happy with the way we came out and battled on both sides of the ball," Petrino said. " I think it was very physical. I think the players did a great job of getting themselves ready. We came out with enthusiasm, a lot of emotion, a lot of big hits, made some plays on the offensive side of the ball. We made some good plays on the defensive side of the ball.
"That's what it needs to be, it needs to be a good battle," Petrino added. "That's when we get closer to being the type of football team we want to be. I was happy with that."
Freshman quarterback Tyler Wilson was 13-of-25 for 348 yards with 6 touchdown passes and 2 interceptions. Ryan Mallett went 15-of-29 for 153 yards and a score with no picks.
Both were helped out by the strong early running of Barnett, who has missed time this spring because of a death in the family.
Barnett, who had seven carries for 79 yards and caught two passes for 15 yards, had his day end when he suffered an apparent shin injury after a 20-yard run.
"I'm a little bit concerned about that. It's his shin, it's not his knee," Petrino said. " When he first went down, he was yelling about his knee, but it's his shin. They had to put an air cast on it, which is always a concern. (He) possibly has a broken shin. I guess we'll have to wait and see."
On the opening series of the scrimmage, Barnett ripped off runs of 11, 14 and 13 yards.
"He was running hard, breaking a lot of tackles," Petrino said. "He's very focused and motivated right now, and if it is his shin, it's a lot better than the knee. And we just have to get it taken care of and get him back as quick as possible. But you hate to see that, especially when someone was performing and having as much as fun as he was out here."
UA running back coach Tim Horton said he was extremely impressed with Barnett.
"He was running as well as I've seen him run since I've been here," Horton said. " He was seeing things, he was breaking tackles, he was making people miss. He was running with great speed. It was his best day as a Razorback.
"For him to go down, it just breaks your heart, but that's part of it," Horton said. "It's not his knee. We think it's his shin, which is better news."
Wilson also was having fun most of the day. He has now thrown 11 TD passes in the last two scrimmages – several coming against the second-team defense, but also some against the starters.
"Tyler has great vision, he sees things," Petrino said. "He's got to get rid of the interceptions. He threw a couple of interceptions because of tipped balls, and if we can get him just taking care of the football. He certainly threw some real nice touchdown passes, had some guys get open and made some plays both with the ones and the twos. I think that's what I liked. When he came in with the ones, he executed and we went right down and scored."
Wilson had TD passes of 80 and 22 yards to London Crawford, 42 to Carlton Salters, 36 and 45 to Joe Adams and 30 yards to Reggie Fish.
Linebacker Jermaine Love and defensive back Chris Reggett both picked off his throws.
"I felt we had a good day," Wilson said. "I threw a couple of interceptions that I wish I could take back, pull back on the reigns and keep a bad play from extending even worse."
Mallett was very accurate early on – hitting on 10 of his first 13 passes, including a 4-yard touchdown toss to tight end Ben Cleveland.
"I think I've had better days," Mallett said.
His day ended on what looked like a touchdown pass to Adams before Ramon Broadway stripped the wideout.
On that play, Mallett slightly injured his shoulder, one that had been hurt earlier diving on a fumble.
"I just banged it up a little bit, a little sore and they just held me out for precautionary reasons," Mallett said.
Adams had an interesting day receiving as he hauled in 5 catches for 116 yards and two touchdowns, but also had some drops that kept him from having an even bigger day.
Well, I think the last two times we've scrimmaged, we see that when you get the ball in his hands, he can really make plays for us," Petrino said. " So we've got to be able to get it to him in positions where he can run, positions where he can get down the field. His speed is really starting to show up, but he needs to make every catch. He has a tendency sometimes to not focus, but I thought he played well today."
Adams has now caught six TDs in the last two scrimmages.
"It was a lot more balls thrown the last scrimmage than this one," Adams said. " I had a key drop in the end zone, and it was kind of compared to last week. But I've got to put that behind me."
As noted, the first team defense accounted for itself well according to defensive coordinator Willy Robinson.
"I thought they flew around well," Robinson said. "I thought our first team defense did well. I thought our second group was inconsistent." There were several big hits passed out by both defenses.
"The defensive front, I thought, put a lot of pressure on the offense, put a lot of pressure with the four-man rush," Petrino said. " Adrian Davis seemed like he was in the backfield all day long. Jerry Franklin was running around, making a lot of tackles. And I really feel like in the last week Wendel Davis has taken some big strides at executing at the middle linebacker for us."
Franklin said the defense was determined to do better on Friday than it did in the previous scrimmage last Saturday.
"We came out and played faster, passed out some big hits hits and did a very good job," Frankin said.
Arkansas will take the weekend off before concluding its spring practice with workouts on Tuesday, Wednesday and Friday and the Red-White scrimmage on Saturday.
Until then the coaching staff will be pouring over the tape of the scrimmage with Petrino thinking he will like what he sees.
"A lot of times you let young men know what you want, and they'll go out and try to do that for you," Petrino said. "We made sure that they did."
• Ryan Mallett 15-29, 153 yards, 1 TD, no picks
• Tyler Wilson 13-25, 348 yards, 6 TDs, 2 picks
• Jim Youngblood 7-16, 120 yards
• Brandon Barnett 9 carries, 79 yards
• DeAnthony Curtis 6-26
• Broderick Green 10-31
• Adrian Moore 10-34, 1 TD, 2 fumbles, 1 lost
• Patrick Watkins 5-19
• Mitchell Bailey 3-15
• Joe Adams 5 catches, 116 yards, 2 TDs
• London Crawford 3-107, 2 TDs
• Jarius Wright 6-76
• Reggie Fish, 5-87, 1 TD
• Carlton Salters, 2-50, 1 TD
• Greg Childs 2-24
• Brandon Barnett 2-15
• Ben Cleveland 1-4, 1 TD