Dennis Eckert grew up in Victoria where he excelled in Little League Baseball at Hampton Park. In his early twenties he switched to competitive Fastball and played in the Stuffy McGinnis League and later for the Victoria Budget and Royals teams. He also played in Alberta.

His career in Fastpitch spanned twenty years and he was known as one of the dominant hitters in the world. In 1983, Dennis was integral in helping the Victoria Budget Sr A team win a Gold medal at the BC Provincials and Canadian Championships. At the Canadian Championships, Dennis was the top batter with an .875 average - a record which still stands today. In 1986, Dennis played Sr B and won a North American Fastball Association Championship and dominated the Western Canadians winning Gold in 1992 and 1993.

Overall, Dennis played in six Senior A Canadian Championships, 11 Senior A Provincial Championships, one North American Fastball Association Championship, and two Masters Provincial and Western Canadian Championships. His personal accomplishments include Pacific Northwest 7 time All-Star, Senior A Canadian Championship All-Star and Top Batter, Senior A Canadian Championship MVP, International Softball Tournament All-Star, and North American Fastball Association World Tournament All-Star.

In 1999, Dennis was inducted into the Alberta Softball Sports Hall of Fame and in 2020, he was inducted to the BC Softball Sports Hall of Fame.