Werenich was born and raised in the town of Benito, Manitoba but moved to Toronto after finishing high school.

In 1983 Savage joined Werenich as his third and they would go on to win the Brier title that year over Ed Lukowich of Alberta.

At the World Curling Championships of that year, Werenich defeated Keith Wendorf's team from Germany in the final.

During the 1987 Canadian Olympic Curling Trials, Werenich was "humiliated" by the Canadian Curling Association threatening to disqualify him if he didn't "shed a few pounds"[2] At the 1990 World Championships, Werenich defeated Scotland, skipped by David Smith.

[3] The other three members of his 1983 world championship rink, Paul Savage, John Kawaja and Neil Harrison are also in the Hall of Fame.