Dorian Finney-Smith added 16 points, nine rebounds and four assists for the Gators (12-9, 5-3 Southeastern Conference), who won their second straight after a three-game losing streak and got another much-needed resume-booster for the NCAA tournament.
Frazier finished with six points on 2-for-9 shooting, including 0-for-5 from 3-point line. But his play and poise in the final seconds proved to be the difference in a game where the Gators shot 25 free trows to the visitors' 7.
"Give our guys credit, man" Arkansas head coach Mike Anderson said on his radio show after the game. "They hung in there and hung in there. Had some adversity come their way, especially what takes place on the road. We weren't playing our best. I thought our defense was really good, holding a Florida team to 34 percent (shooting).
"But sometimes it comes down to calls," Anderson added. "It is amazing. I talked to one of the head officials - Tony Greene - right before the game and I said this guy last year - which is John Hampton who made the call right there at the end - which I thought was a clean block. I don't get critical of officials, but I just thought the last time we played them at our place things took place and I wasn't happy with it.
"Tonight it was on display again," Anderson continued. "It took away a game in which our kids played really hard."
Florida had the ball with 11.5 seconds remaining, but Chris Chiozza missed a shot. Frazier got the offensive rebound and was fouled by Alandise Harris. He made both.
"Just had to stay engaged," Frazier said. "Whenever you have a tough shooting night like that, you have to find other ways to impact the game. That's what I tried to do. The ball wasn't going in for me, but I still wanted to help my team."
The Razorbacks (16-5, 5-3) had one final chance, but turned the ball over on the in-bound pass. The loss snapped Arkansas' three-game winning streak and was the team's 10th consecutive loss in Gainesville.
"It was a hard-fought game," Anderson then added in the post-game press conference. "I was disappointed with the outcome of it. Credit to Florida. They hung in there and found a way to win. What I was disappointed more than anything was was the officiating down the stretch. A guy that I have seen before, John Hampton, made one of the more critical calls in the game. The last play was one I was not satisfied with."
Anderson continued a few minutes later, saying "for it to come down to what took place, it's just total disappointment. I know it's a judgment call, but that's my judgment."
When asked whether he felt "hosed" by the call, Anderson's wife, Marcheita, chimed in from the audience with "don't say it."
Anderson then added "next question."
Florida head coach Billy Donovan, now 10-2 against Arkansas in his career, was pleased that his team pulled out a game after being only 3-5 in games decided by five points going into the game."
What has happened to these guys and when it has not gone well for them, they lose their competitive spirit and they don’t fight, they don’t battle, they don’t scratch, they don’t claw, they don’t do it," Donovan said. "They get down, they don’t battle and I thought that in the game there was a couple moments where we were teetering a little bit where we were back to that mindset and I thought that this game I really felt like they battled as hard as they could."
Bobby Portis led Arkansas with 21 points and 10 rebounds, but Michael Qualls had just 5 points on 2-of-10 shooting from the field.
Portis, who was 9-of-15 from the field and 3-of-4 from the line, had 10 points in a row at one point after his team got down by nine in the second half.
"Our guys did a good job of getting the ball to him in the right position and Bobby made some plays for us," Anderson said. "He was one of the few guys that got to the free throw line for us. He got a double-double again and continues to show that he is one of the better players in our league."
Portis tweeted the following after the game about his team.
Anton Beard had 10 points and his basket with 11 seconds left after Alandise Harris hit one of two free throws put the Razorbacks ahead 56-55.
I love this team man! We are going to keep growing, getting better individually, and collectively as a group I guarantee it #WooPig— Bobby BP Portis (@BPortistime) January 31, 2015
"It's not about being a hero, it's just about making a play," Beard said. "I saw the ball go wide and knew I could get there so I just made a play.
"For our guys to fight and hang around, hang around, scratch and claw, we did show some poise to get back in it," Anderson said. "Bobby making plays, Mike making plays, Alandise making plays."
It was the first start of true freshman Beard's career and he played a career-high 31 minutes as did Madden while Portis played 32 minutes, Qualls 29 and Harris 25.
"I thought he played well," Anderson said of Beard. "I thought he directed and took some of the pressure off (Rashad Madden) in terms of the ball-handling and let (Rashad) become a little bit better scorer, so he did a good job. He's earned it. He's earned that right."
Beard admitted he was excited his first start.
"It was a great feeling," Beard said. "I really like the way coach believed in me to be able to start...It was such a big crowd. It's a great place to play."
Arkansas shot 40 percent from the field while limiting Florida to 34 percent, but had 16 turnovers with Harris having 6 and Qualls 4.
"We shot 40 percent," Anderson said. "They shot 34 percent. Can we talk about defense? I though our defense was good. Offensively, that's probably a little bit to be desired by both teams, but that's life in the SEC. That's life in conference games. Teams are so familiar with one another and obviously you have to have an outstanding shooting night to come in here and beat a Florida team.
"I was happy with our defense," Anderson added. "I was happy with our effort. Now the execution is something to be desired because we had 16 turnovers and one guy had six. He had the the sixth one right there at the end. That's sloppiness. That's what that is."
Florida had 39 rebounds to Arkansas' 36.
"I think the thing that really ended up hurting us was offensive rebounds at key, critical moments," Anderson said, "and we had some bad turnovers at wrong time."
Arkansas will host South Carolina at 8 p.m. on Tuesday night and then host Mississippi State at 3 p.m.
"It was a day when I thought our guys came in ready," Anderson said. "They only had one guy in double figures. We did a great job on Frazier, who will know is capable of making some big, big shots. But at the end of the day, we didn't get the job done."
Michael Frazier knocks down the game-winning free throws with 1.9 seconds left.
Anton Beard fights for a loose basketball.
Arkansas head coach Mike Anderson
Florida head coach Billy Donovan