The first round of Tractor Brackets is in the books!

There were a few upsets, a couple tight finishes and some blow-outs in the first round, with some familiar names and a few lesser-known machines making it through to Round 2. Now is your chance to move your favorites on to the next round! Next Friday, we'll pick the winners of Round 2, so vote early and often! Later this spring, we'll tally up all the votes and crown a winner of this year's group vying for the honor of Greatest Tractor of All-time!

• See a full-size version of the Tractor Bracket
• Download a printable version (PDF)

Selecting the 'greatest'

"This 'Greatest' list certainly does not end with the 32 tractors featured here. Not by a long shot. At last count, I have winnowed my master list down to no less than 64 greatest tractors. Maybe more will join that fold in time as you take me to task for not including a particular tractor model that you feel qualified to be added to this honor roll," says Successful Farming Machinery Director and Ageless Iron Editor Dave Mowitz. "Enjoyable? Absolutely! I absolutely adore tractor history! The tractor has a very rich, very entertaining history. Plus, I’m of the conviction that the development of the tractor and related agricultural machinery is among the 'greatest,' if not the most monumental, of all technological advances that have occurred to mankind."

Four guiding principles were employed in that process. See how Dave picked the Tractor Brackets competitors and seedings, add your selections below, then get in on the Smack Talk in the Tractor Brackets forums!

• Read more from Dave
• Want to see more of the 'Greatest tractors of all-time?'
• Shop for more tractor collectibles