When was the closest finish who were the two mushers how far apart were they what were their times?

The closest finish in the Iditarod history occurred in 1978 between mushers Dick Wilmarth and Rick Swenson. Wilmarth won the race by just 34 seconds, making it a nail-biting conclusion. Wilmarth's finishing time was 17 days, 1 hour, and 57 minutes, while Swenson finished shortly after at 17 days, 1 hour, and 58 minutes.