He died in a Little Rock, Arkansas, hospital, according to a spokeswoman for Oaklawn Park, where Van Berg had relocated his training base after leaving Southern California in 2013. No cause was given.
Van Berg ranks fourth all-time among trainers in North America, with 6,523 victories from 41,164 starts, according to Equibase. He had career purse earnings of $85,925,482.
In the Derby, Alysheba and jockey Chris McCarron were nearly knocked down at the top of the stretch by Bet Twice. Alysheba recovered and won despite having just one career victory before the Run for the Roses. Alysheba won the Preakness to set up a try for the Triple Crown but finished fourth in the Belmont.
As a 4-year-old, Alysheba won the 1988 Breeders' Cup Classic and went on to earn the Eclipse Award for Horse of the Year.
Van Berg saddled Gate Dancer to victory in the 1984 Preakness. That same year, he earned the Eclipse Award for Outstanding Trainer.
Van Berg was elected to the National Museum of Racing and Hall of Fame in 1985. His father, trainer Marion Van Berg, already was there, having entered in 1970.
From 1959-77, Van Berg was the leading trainer at Ak-Sar-Ben racetrack in Omaha, Nebraska. In 1976, he won a record 496 races and was the nation's leading trainer, with $2,976,196 in purse earnings.
In 1987, Van Berg became the first trainer to win 5,000 races when he saddle Art's Chandelle to victory at Arlington Park outside Chicago.
He trained in Southern California for 41 years until moving to Oaklawn in Hot Springs, Arkansas, after Hollywood Park closed in December 2013. Van Berg blamed the cities of Inglewood and Los Angeles and the state of California for the track's closure.
“I just think it's a pathetic thing,” he said at the time. “It's ridiculous to let something like this that so many people love and thrive on close. They did everything they could to kill racing. I've had enough. I don't like California racing anymore. I don't like the way they run it and what they do.”
Van Berg mentored Hall of Famer Bill Mott, who began as an assistant to him. Born June 7, 1936, in Columbus, Nebraska, John Charles Van Berg began training for his father in the 1960s. The elder Van Berg trained nearly 1,500 winners but was more successful as an owner, winning 4,691 races and $13,936,965. He was the first inductee of the Nebraska Racing Hall of Fame, and his son followed him.