Five Closest Finishes

Adapted from an ADN sidebar -
The top five closest Iditarod finishes:

1978 — Dick Mackey beat Rick Swenson by 1 second
1982 — Rick Swenson beat Susan Butcher by 4 minutes
1977 — Rick Swenson beat Jerry Riley by 5 minutes
1975 — Emmitt Peters beat Jerry Riley by 27 minutes
1993 — Jeff King beat DeeDee Jonrowe by 33 minutes