Eaves impressive performance came at the expense of David and Ryan Ledbetter, twin brothers and pitchers for High Desert.
"No, I wasn't aware of that -- that's something new to me," Eaves told MiLB.com when asked about the odd accomplishment. "That's funny, I didn't know that."
Eaves was selected in the 16th round of the 2012 Draft and is hitting .251 through 90 games this season.
Wednesday's power barrage, his first multi-homer game of the season, brings Eaves' season total to nine.
"It was awesome," Eaves told MiLB.com. "It was a good experience, I put good swings on the ball and just -- I can't even explain it -- it was fun."
William Boor is a reporter for MLB.com. Follow him on Twitter at @wboor. This story was not subject to the approval of Major League Baseball or its clubs.