Undisputed Boxing Gym

Undisputed Boxing Gym True one-hour boxing/kickboxing workout class. Where you will learn foundational punching and kicking skills.
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This is also paired with strength training where you will a variety of equipment. Class schedule can be found on our website: www.undisputedboxinggym.com

Contact:
Phone: (650) 362-3346
Email: [email protected]

03/23/2026

Our FREE Intro Class is built for beginners, learn the basics, move your body, and feel what it’s like to train like a fighter.

No experience needed. Just a little effort.

Bring a friend and get started together!
DM TO BOOK A BAG or send us an email. [email protected]

03/22/2026

At Undisputed we’ve just unlocked what your body’s been missing. If you are in search of more energy, faster recovery, sharper focus, losing weight, building more lean muscle…Real results!?

Contact us as there is a smarter way to optimize performance from the inside out.

DM if you’re ready to level up.

02/25/2026

FINALLY….Peptides are here at UBG.

Next-level support for fat loss, recovery, muscle tone, skin health, and performance, all prescribed by a licensed medical provider and shipped from a compliant pharmacy. We had to do it right, or we weren’t going to do it at all.

If you’re curious or want to see if it’s right for you, send us a DM and we’ll walk you through it.

02/19/2026

Introducing THE COMPOUND our new Medical Weight Management Programs combine the training you love with prescription-strength metabolic support.
• Physician-Monitored
Compounded in the USA
Delivered to your door This isn’t a quick fix-it’s a commitment to a complete biological overhaul. Ready to break through? Send a DM to learn more.

01/20/2026

Resolutions aren’t the problem.
Broken promises to yourself are.

If you said you were going to change last year and didn’t… that’s on you.
New year. Same excuses? Weak.

Stop talking. Start training.
Join our FREE intro class and finally do the things you said you would.

12/31/2025

Every class. Every round. One day.

This isn’t a workout.
It’s a test of discipline, conditioning, and mindset.

The Undisputed Marathon Challenge was created by UBG members and Marc and Phil set out to complete every single UBG class in a single day 👊. That’s a total of 5 - 60 minute classes, so essentially 5 hours of UBG classes in one day. If you’ve ever done one class you know how challenging they are, so respect to Marc & Phil for setting the challenge and finishing strong!

Most people talk about commitment.
Very few are willing to prove it.

Marc Wong Stats:
• 3,725 calories burned
• 26,846 steps
• 14.01 miles
• 270 minutes of HIIT

Phil Maskiewicz Stats:
• 3,001 calories burned
• 28,467 steps
• 19.9 miles
• 251 minutes of HIIT

After that kind of challenge they were able to Recover in our new

We may launch this challenge again next year, who’s down? 💥🥊

09/26/2025

Not just a run. Not just a workout. Not just a moment.

This is the best damn run club in the game and it’s only getting stronger. Week after week, the community shows up with heart, grit, and zero excuses. We move together. We grow together. We finish together.

If you’re tired of solo runs, stale routines, and surface-level fitness this is your sign.
Saturday. 9AM. HIIT & Run. Let’s go.

09/21/2025

training the next world champ coming out of the Bay Area 🏆 Undisputed breeds champions 👊

09/21/2025

More than a coach. More than a class. 🥊
built Undisputed for the people 👊 to teach the fundamentals of fighting and strengthen the mind as much as the body.

09/19/2025

Rest in Power, 🕊️

A Boxing Legend — remembered forever 🙏🙏🙏

🚨 UBG RUN CLUB 🚨 𝑨𝒓𝒆 𝒚𝒐𝒖 𝒊𝒏? 🗓️ 9AM • SATURDAYS🏃‍♂️🏃‍♀️ STARTING POINT: UBG GYM🔹 follow
09/10/2025

🚨 UBG RUN CLUB 🚨
𝑨𝒓𝒆 𝒚𝒐𝒖 𝒊𝒏?


🗓️ 9AM • SATURDAYS
🏃‍♂️🏃‍♀️ STARTING POINT: UBG GYM
🔹 follow

Address

897 Winslow Street
Redwood City, CA
94063

Opening Hours

Monday 6:15am - 1pm
4pm - 8pm
Tuesday 6:15am - 1pm
4pm - 8pm
Wednesday 6:15am - 1pm
4pm - 8pm
Thursday 6:15am - 1pm
4pm - 8pm
Friday 6:15am - 1pm
Saturday 7:30am - 11am
Sunday 7:30am - 11am

Telephone

+16503801750

Website

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