In both the 1968 and 1988 Olympics, USA ran the exact same time of 2:56.16 in the 4x400m relay 20 years apart. (1968 was set in altitude in Mexico City).
The roll call for 1968 was Vincent Matthews, Ron Freeman, Larry James, and Lee Evans.
In 1988, it was Danny Everett, Steve Lewis, Kevin Robinzine, and Butch Reynolds.
Any time under 3 minutes is a World Class time for the 4 x 400 meter relay. In the past, only USA would (or could) break that barrier, but now we are seeing other countries catch up on the American dominance. But don’t hold your breath: USA produces new quality Quarter-Milers every year.
How fast is 2:56? You need a lead-off time of 44.8 and 3 guys running 43.8 on the “fly”.
Here are both races on YouTube. In both videos, watch how other countries are racing for the silver medal.
UPDATE: Sorry, the video is no longer on YouTube.