Keczmer made his professional debut with the IHL's Kalamazoo Wings in the 1990–91 season.

[citation needed] Keczmer was one of many North Stars who joined the San Jose Sharks in the 1991 NHL Dispersal Draft.

Before the Sharks' inaugural season began, however, Keczmer was traded to the Hartford Whalers in exchange for Dean Evason.

Keczmer would play with the Whalers, Calgary Flames, Dallas Stars, and Nashville Predators before retiring following the 1999–2000 season.

This biographical article relating to an American ice hockey defenseman is a stub.