The race took place on May 21, 1977, and was televised in the United States on ABC.
Seattle Slew, who was jockeyed by Jean Cruguet, won the race by one and one half lengths over runner-up Iron Constitution.
The race was run on a fast track in a final time of 1:54-2/5.
[1] The Maryland Jockey Club reported total attendance of 77,346, this is recorded as second highest on the list of American thoroughbred racing top attended events for North America in 1977.
[2] The 102nd Preakness Stakes Payout Schedule $2 Exacta: (8–7) paid $42.20