Jeane, who won an FLW Tour event in 2006, was fishing the Everstart tournament on Toledo Bend when he sank the hooks into the lunker that weighed in at 13 pounds, 4 ounces.
"I caught it at 11 a.m.," Jeane said. "That made my limit, and I left (that spot). I never caught another fish."
The huge fish anchored a 25-pound, 6-ounce stringer that put him into the eighth-place finish.
Jeane, who has caught "seven or eight over 10 pounds," said this was the heaviest bass he's landed to date.
He was dragging a Carolina rig over the edge of a grass flat in 22 feet of water when the bass grabbed his watermelon/candy red Havoc Bottom Hopper trick worm.
But he didn't have a clue initially that it a fish was on the terminal end of his line.
"I actually thought I was hung," Jeane said. "I was fixing to pull (on the line), and when I pulled it tight I saw my line coming up."
The fish cleared the water four times.
"All I could think about was getting her in the boat," Jeane said. "I was just hoping my co-angler was good on the net.