Kennedy-Sim had a strong performance in qualifications, advancing to finals in fifth place.
In the first round of head to head finals racing, Kennedy-Sim just missed out on advancing int he top two to the next round in a photo finish, placing third in the quarter final heat.
"I had some really great feelings on my skis this week in Sunny Valley," Kennedy-Sim commented after the race.
"I missed out on getting to the semi final by about 3 cm in a photo finish and I initially feel heart broken. I am disappointed that I have ended my season unable to ski into a big final."
"I have had some close racing all winter and I can't wait to get to work over the summer/our winter as we head into the Olympic qualifying period next year."
After Sunny Valley, Kennedy-Sim finishes her season in ninth place on the World Cup standings.