About maximus

Mark O'Neil

From playing baseball, to coaching and giving baseball hitting instructions, and working out, health and fitness have been a way of life. I have 3 kids, all of which were college athletes. My daughter is currently playing beach volleyball for Boise State. Many hours have been spent enjoying working out together. My main goals for Maximus Gym are to create a facility where everyone looks forward to being there, is excited to workout and train, has lots of fun, is supported in reaching their fitness goals, and build ties with the community. 

Mike Castillo

Born and raised in Las Vegas, Nevada, I developed a passion for health and fitness through football and wrestling in high school. After graduating from UNLV in 1997 with a Bachelor's in Communications, specializing in Special Events and Public Relations, I held roles such as Director at the Fremont Street Experience and Programs Director at the UNLV Alumni Association.

For 15 years, I've been a licensed Real Estate Professional, serving commercial and residential investors and property managers. In Ellensburg, I've managed retention and corporate accounts at Maximus Gym while immersing myself in the community. Outside of work, I'm a husband and father of two amazing boys.

Jesse Garoutte

Ellensburg native who has been a member at Maximus since 2017, but started on staff in August of 2022. I graduated from Ellensburg High School in 2018, after which I served a two year mission in Chile and then Arizona, helping me become fluent in Spanish. I played football, wrestled, and ran track during middle and high school; athletics and exercise has always been apart of my life since I was a young teen. I am currently enrolled at CWU, majoring in History and Secondary Education in hopes to become a college professor. I plan to get my Doctorate and specialize in the history of Eastern Asia and China. In my free time I like to spend time outside hiking or shooting. 

Grace Howard

Hi, I'm Grace! I have worked at Maximus for about a year and love it. I am currently in school to be a nurse with hopes of being a pediatric nurse practitioner. I grew up running cross country and track in middle and high school. I continued into the collegiate level for two years and now do triathlons, trail running, and lifting in my free time. I love traveling and being outside while spending time with family and friends.

Isabella Holmes 

Hi, I'm Isabella! I am currently a student-athlete at CWU. This is my second year at Central and being on the track team. I find the most joy in working out, specifically CrossFit. I also find a lot of joy just being outside and being with my dog, Luna Marie. I have been an athlete for most of my life and it's who I am. I am currently working towards a degree in Psychology, and plan on using that in my dream job of being a part of Law Enforcement. 

Chelsea Marozik

My passion for fitness began when I started playing soccer at 10 years old. My soccer career brought me to Central Washington University where I received my Bachelor's degree in Psychology. After receiving my Bachelor's, I obtained my certification from the International Sports Science Association (ISSA). I love to share my passion and love of fitness with others. Don't be afraid to say hi when you see me around!