Olympic medallists Justin Olsen and Elana Meyers Taylor claimed the men's and women's pilot titles respectively at the 2017 USA Bobsled National Push Championships in Calgary.
Olsen was a member of the four-man team which clinched the gold medal at Vancouver 2010, along with the late Steve Holcomb, Steve Mesler, Curtis Tomasevicz.
Holcomb, who piloted the quartet to victory at the Games, was found dead in his room at the US Olympic Training Center in Lake Placid on May 7, aged just 37.
His death sent shockwaves throughout the bobsleigh and skeleton world and two memorial services for the five-time world champion have since been held.
Olsen registered victory at the event at Calgary's Ice House, the first major competition of the sliding season, as he finished with an overall time of 10.32sec having clocked 5.14 and 5.18 in his two runs.
Dustin Greenwood was second on 10.48, with Nick Cunningham third on 10.54.
"It’s been an interesting summer as far as being throttled with training while coming back from a calf injury - I’m not getting ahead of myself, which is one of the hardest things to do," said Olsen, who has also won four World Championships gold medals.
"As much as I want to break my record, I know there’s still time before the season starts.
"I’m looking at the big picture this year, taking baby steps."
Meyers Taylor, a bronze medallist at Vancouver 2010 before she claimed silver in Sochi, reigned supreme in the women's event with a combined 11.03.
The 32-year-old produced runs of 5.50 and 5.53 to finish ahead of Katie Eberling and Jamie Greubel Poser, who were second and third respectively.
"It feels good to start another season with a win,” Meyers Taylor said.
“As drivers, the main thing for us is to stay healthy and keep in mind that we have October to prepare for.
"Push Championships gives us the chance to practice some things we need for competition, like mental resilience.”