Ski Knees Series
Commit to your best season yet by starting out with rock-solid legs!
Functional strength and conditioning training to prevent injury and improve your skiing.
What to Expect
An 8-week program with 15 classes designed to build functional strength, improve conditioning, and prevent injury so you can ski stronger, longer, and safer this season.
Dynamic Exercises: Specific, targeted exercises to help you ski from first chair to last chair.
Injury Prevention: Programming co-designed with Dr. Beckham to keep you safe and strong on the hill.
Expert Instruction: Led by Kelley Mast, Certified Personal Trainer, Ski Instructor, and Former Ski Racer.
Snowboarder-Friendly: Snowboarders are indeed allowed, but may have to do extra burpees!
Meet Your Instructor
Kelley Mast
Ski Racer
Ski Instructor
Certified Personal Trainer
Kelley is a NASM-certified personal trainer and owner of MastMountainFitness, LLC. She has been training clients and leading group fitness classes in the Snoqualmie Valley for over 12 years. In addition to personal training, Kelley is certified in spin, TRX, barre, and HIIT Chaos.
Her programs focus on stabilization, balance, strength, endurance, and power to help clients feel confident, strong, and capable.
A lifelong athlete, Kelley grew up in the Colorado mountains, competed in cycling and ski racing, and more recently taught skiing at The Summit at Snoqualmie, where she earned her PSIA Level 1 certification.
Specific, targeted, dynamic exercises to help you ski from first chair to last chair!
What People Are Saying
- Scott Rinckenberger
“I haven’t gone into a season so strong and confident in years — it really is a game changer.”
- Scott Rinckenberger
“Once skis hit the slopes, we all remarked at how fresh our legs felt even on day one.”
Choose your group
Early Morning
Mondays & Wednesdays
(6:00–7:00 AM)
Start: Monday, October 20th
End: Wednesday, December 10th
Every Monday & Wednesday, 6-7 AM
*Skipping November 26th (Thanksgiving)
Location: Mount Si Wellness Collective
Price: $375
$330 Early Bird Special (Until Sept. 25th)
Mid-Morning
Mondays & Wednesdays
(9:30–10:30 AM)
Start: Monday, October 20th
End: Wednesday, December 10th
Every Monday & Wednesday, 9:30-10:30 AM
*Skipping November 26th (Thanksgiving)
Location: Mount Si Wellness Collective
Price: $375
$330 Early Bird Special (Until Sept. 25th)
Evening
Tuesdays & Thursdays
(6:00–7:00 PM)
Start: Tuesday, October 21st
End: Thursday, December 11th
Every Tuesday & Thursday, 6-7 PM
*Skipping November 27th (Thanksgiving)
Location: Mount Si Wellness Collective
Price: $375
$330 Early Bird Special (Until Sept. 25th)
