Two weeks later, Affirmed went to post as the favorite in the Preakness, and this time he took the lead going into the first turn and went unchallenged until reaching the top of the stretch, when Alydar again made his move.
The margin narrowed even more in the Belmont, but Affirmed completed the sweep.
Affirmed and Alydar met once more, in the Travers Stakes at Saratoga in August.
That was the only time Affirmed finished out of the money in 29 races.
Pincay led Affirmed to victories in the final seven races of his career, including six Grade I races, and Affirmed retired to stud after winning the Oct.
Affirmed, who repeated Horse of the Year honors in 1979, retired as the sport's all-time money winner with almost $2.
Classes 3-A-1, 3-X-PO, 15-IO, 15-PO and X-B-15 affirmed at 'AAA';
Classes 1-CB-1, 1-X-PO, 1-CB-IO, 2-CB-1, 2-CB-2, 2-CB-IO and 2-X-PO affirmed at 'AAA';
Classes 3-A-1 , 3-15-IO, 3-15-PO, 3-X-PO, 4-A-1, 4-15-IO, 4-15-PO and 4-X-PO affirmed at 'AAA';
Classes 1-CB-1 to 1-CB-6, 2-CB-1, 3-CB-1, 4-A-1, 5-A-1, 15-IO, CB-IO and A-PO affirmed at 'AAA';
Classes 1-CB-1 to 1-CB-7, 2-CB-1, 3-CB-1, 4-A-1 to 4-A-4, 5-A-1, CB-IO, CB-PO, X-IO and X-PO affirmed at 'AAA';
Classes 1-CB-1 to 1-CB-7, 2-CB-1, 3-CB-1, 4-A-1 to 4-A-4, 5-A-1, 6-A-1, CB-IO, CB-PO, 4-IO, 4-PO, 15-IO and 15-PO affirmed at 'AAA';