Corte Madera CA, 94939


Marko Kosta


Marko grew up skating the streets of NYC in the late 1980’s and through the 1990’s. He picked up skating at age 14 and quickly fell in love with the exhilarating feeling of riding a skateboard and learning new tricks. He competed between the ages of 18-22. He earned his Bachelor’s degree in Business Administration from Pace University in 1999 and worked as a marketing executive for many years, prior to founding SK8 GYM, Corp.  
He has lived in the San Francisco Bay Area for 20+ years, where he raised his two sons and volunteered with various youth community programs for 15+ years. During that time, he has instructed students age 5-17 how to safely ride a skateboard among other activities. 

Marko is currently available in SF Bay Area, including San Francisco, Marin County, and LaMorinda Area. 

Marko Kosta team member profile


Sladjana Paunovic

President & CEO

Sladjana is a Chicago native, raising her two teenage children, both of whom are avid skaters. She holds a Bachelor’s degree in Business Administration from University of Chicago.  She worked in corporate management for over 15 years with Marriott International prior to joining SK8 GYM leadership. She enjoys being able to serve her community by volunteering at food banks during the pandemic and supporting her children in Scouting services. 


Ashley Davis 

Certified Roller Skating Instructor & Skateboard Instructor

Ashley Davis, 20 years old, trained and competed in roller figure skating for 12 years, earning 19 USARS National Championship titles. She is passionate about sharing her knowledge with others.

Ashley’s compassionate nature allows students to feel comfortable and safe in their endeavor.

In her free time she enjoys transition roller skating and skateboarding at skateparks.

Outside of skating she loves to work on leading a environmentally sustainable lifestyle by spreading awareness in the Orange County community.

Ashley is currently available for private lessons and classes in Orange County and Los Angeles. 


Jonah Medina 

Certified Skateboard Instructor

Jonah brings over a decade of youth mentorship and skateboarding instruction experience to our team. He is a graduate of Alma Heights Christian High, where he excelled at football.

He is currently a student at Skyline College pursing a Bachelors Degree. Johan has a unique ability to put his students at ease with his confidence and gentle approach.

Jonah is currently available for private lessons and classes in San Francisco, and Marin County. 


Colin Drechsel

Associate Instructor

Colin picked up skateboarding a few years ago. While he attends College of Marin, he enjoys giving skateboard lessons to our youth students. His patience and supportive nature makes student’s feel good about their classes. During his free time, he loves to skate transition with his friends.


Colin is currently available for classes and camps in Marin and San Francisco.


Jasmin Fletcher

Certified Roller Skate & Skateboard Instructor 

Jazmin was born and raised in San Francisco. She’s been skateboarding for over 10 years and roller-skating for over 3 years. Jazmin’s skateboarding and roller skating style is mostly street but she also loves ramps & bowls. Jazmin loves to introduce the amazing world of skating to her local community.

Jasmin is currently available for classes and camps in San Francisco, Marin and East Bay locations.

Jazmin Fletcher Skate

David McWilliams 

Certified Skateboarding Instructor


David is available for private lessons and classes in the Los Angeles area.
Sk8Gym Logo

Sarenda Vaughn

Roller Skating Instructor


Sarenda is available for private lessons and classes in East Bay locations. 

Will Rogan

Will is 45 years old and has been skating with intent since he was 11 years old. When he’s not skating, he teaches Art at Mills College and continues to parent his two kids who are now adults.

He works as a photography guide seasonally in Antarctica. He finds time to skate daily for most of the year. Will spent nine years as the volunteer nurse at his kids’ co-op K-6 school.

Will is available for private lessons and classes in Marin County. 
Will Rogan -- Instructor