"I've been struggling and trying to get back in the swing of things," Eibner said. "The pitch was right there and I just reacted to it."
James McCann reached on a throwing error by Western Illinois short stop Lorenzo Gallaga in the previous at-bat and Eibner nearly lapped the catcher on his way to third base.
"I was just trying to keep an eye on him," Eibner said with a laugh. "I told him to get going."
Eibner's hit gave the Razorbacks (5-1) their second 10-inning win in as many outings. Despite the win, Arkansas was disappointed in its performance.
The Hogs led 6-2 entering the eighth inning, but a pair of errors from Arkansas short stop Scott Lyons helped the Leathernecks to a five-run inning and a 7-6 lead. Only two of the runs in the inning were earned.
"We had a four-run lead and a couple of outs and all of a sudden we couldn't get an out," Arkansas coach Dave Van Horn said. "They were hitting the ball in the hole and we couldn't make a play. They scored a couple of runs on a nice hustle play (to take the lead)."
The errors on the part of the senior Lyons were uncharacteristic, said Arkansas third baseman Andy Wilkins.
"Those were definitely tough plays - in the hole and Scott won't make errors on those plays every day," Wilkins said. "They were real tough plays."
The Razorbacks answered in the bottom half of the inning. Eibner led off the inning with a full-count walk and advanced to second on a wild pitch by Chris Fuchs. Eibner advanced to third when Jacob House grounded to first one batter later and scored when Lyons flied out to right field.
Eibner, who was hitting just .111 coming into the game with 12 strikeouts, went 2-for-3 with two RBIs and two runs scored.
"He did a great job tonight," Van Horn said. "He took his walks, didn't press.
"He had a big hit there at the end of the game. Any other night the ball goes out of the park. I thought the wind kind of pushed it down."
Eibner was moved from fifth to seventh in the batting order before the game, but he said that didn't affect his mindset going in.
"(Where I am in the lineup) isn't really the issue right now," Eibner said. "It's about me getting comfortable at the plate. For me just being in the lineup is good enough - just being able to help my team.
"It feels great to finally get (the slump) off my chest. I feel like I'll be able to help the team out a lot more now."
Arkansas took the four-run lead on a pair of two-run homers in the fourth and fifth innings from Ryan Cisterna and Wilkins, who leads the team with three home runs on the season.
"(Hitting coach Todd) Butler came in there and told us about their late rhythm," Wilkins said of Western Illinois' pitchers. "These guys throw it a little bit slower. I tried to take advantage and put the bat on the ball."
While the Razorbacks' offense did its part, the Leathernecks' (0-5) bats were a bit of a surprise, Wilkins said.
"Maybe we took them a little bit too lightly," he said. "We definitely don't need to do that anymore the rest of the weekend and need to play a little better."
The second game of the series scheduled for Saturday has been canceled because of the inclement weather and freezing temperatures. The two teams will meet in the series finale Sunday at noon.