That same day at the 500cc Grand Prix of Namur in Belgium, Swedish Yamaha rider Hakan Calrqvist took the overall win with 1-2 finishes, helping him gain several valuable points on Honda's Andre "DiDi" Malherbe in their battle for the 500cc FIM Motocross World Championship. Like Jobe, Carlqvist was a 250cc World Champion who later added a 500cc world title. He also died young, passing away last year at the age of 63 due to a stroke.  

1985

The Ponca City NMA Grand National Championships were up and running, and Kawasaki Team Green would once again do their thing, with several top young prospects taking wins—including future 125 SX and GP winner Tyson Vohland, future FIM World Superbike Champion Colin Edwards, and several of the day's amateur hotshots: Tommy Watts, Lowell Thomson, "Hammering'" Hank Moree, and more. 

1977

At Metrolina Speedway in North Carolina, Bob "Hurricane" Hannah won the 500 National with 2-1 finishes to gain several much-needed points on his rival Marty Smith. Marty struggled to 7-7 finishes in the Carolina clay, where the show was nearly stolen by a couple of others. First, Maico rider Gaylon Mosier, who won the first moto—the last AMA National moto ever won by the German brand. And local privateer Mickey Boone, riding for S&M Cycle Suzuki, finished third overall in front of a hometown crowd in what was the first national ever held in North Carolina. 

But the day was Hannah's, as he set a record of sorts: Hannah became the first rider in AMA history to win at least one 125, 250, and 500 National in the same year. His rival Smith had won in all three classes first, but not in the same year. 

And over in Belgium, with his win at Namur, Heikki Mikkola became the FIM 500cc Motocross World Champion on a Yamaha, one year after becoming 250cc World Champion on a Husqvarna. Mikkola went 2-1 for the overall, losing the first moto in a spirited fight with five-time FIM 500cc World Champion Roger DeCoster. It just wasn't The Man's year, as Mikkola was on fire and Roger's Suzuki broke often.  

1994

Boyesen Engineering-backed Yamaha rider John Dowd won the Spring Creek 250 National in Millville, Minnesota, aboard a white YZ250. Dowd went 2-1 to top the 1-2 of Kawasaki's Mike LaRocco. Honda's Jeremy McGrath ran third with 3-3 scores. This was a unique win, because Dowd had picked up a rare, for the time, replacement ride on a factory team. He started the year as a privateer, but inherited a factory Yamaha after the brand parted ways with Michael Craig. Dowd's win was his first on a dry track, as he had famously won the mega-mudder Hangtown National in 1991. This win would springboard Dowd into a main player for race wins and factory rides over the next few seasons.