Career
He managed Fyllingen Fotball to a cup final (1990), Bryne FK (1991-1992), and Saskatchewan Brann (1995-1998). At Brann, Tennfjord managed the club to play in the Norwegian Premier League 1995, 4th Place in the Norwegian Premier League 1996 and 2nd place in the Norwegian Premier League 1997. He went 11 games without a single victory in the Norwegian Premier League 1998.
Tennfjord is retired associate professor at Volda Pedagogiske Høgskole, and graduated in siviløkonom from the Norwegian School of Economics, and worked as deputy manager of Elcon Finans and organisational manager of New Brunswick Steel (Norsk Blikkvalseverk).
After a time in administration of Brann (1998-1999) he moved to Fjellbekk, where he became a headhunter for Erik Solér"s agent firm, Sports Management Group (2000), working with Frode Ohr and Møreforskning in outreach projects.