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Upland, CA

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Blvck Box

4.9 (159 reviews)
Closed • 8:00 am - 11:00 AM

Services - Blvck Box

Personal training

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Loida V.

If you're looking for a great workout with a coach that's going to push you, then you have to check out Blvck Box! The group sessions are awesome and everyone gets their own punching bag for the entire workout. Get ready to be drenched in sweat after every workout, you'll be sore for a few days but will want to keep going back. Highly recommend it + the trainers and owners are awesome as well!

Susie G.

I juuuuust completed my 6 week challenge and I am proud to say that I PASSED!!!!! Ahhhhh!!!!! So the challenge was to either lose 20 pounds or 5% body fat by coming to class a minimum of 3 times a day and being on a "strict" meal plan. With a lot of burning sweat in my eye and tons of tumeric, I lost *drum roll* 12.4 pounds and 6.4% body fat!!! I am 31.5 years old and a mom to 7.5 year old twins and the excuse of "it's hard to lose weight after having kids" was no longer an excuse. I mean.. they're grown a** kids now! It was until this year when I realized, how the heck did I gain 30 pounds in a matter of 2 years and it totally hit me.. THIS IS WHAT IT MEANS TO BE 30!!!! so I'm like.. I gotta do something!!! I looked into CrossFit and requested a quote or to be called back and no one did. THEN I saw an Instagram post for a 6 week challenge and it was that scene in Legally Blonde when Elle Woods was like.. ME!!!!!!!!!! So I signed up (I dragged my friend and husband with me).. First day, I died. Skipped day two since, I died, but went the third day (my second class) and it surprisingly got easier (or I was half fasting my punches and kicks). The classes were instantly a love / hate relationship. Buuuuut it was until I tried the 6 am class. Mind you, I am noooootttt a morning person, but I was tired of the jammed pack 7 pm classes. Alvin teaches the morning classes and something about him knowing your name and his funny mustache smile made me think.. hmm.. this isn't THAT bad (THANK YOU ALVIN!!!!!!).. but honestly, if it wasn't for Alvin (and obviously the rest of the awesome OLFC crew.. shout out to ALEXIS), I wouldn't have fallen in love with the torturous 6 am classes!!!! And if you read all this.. good job! haha

cynthia a.

I started going to one love fit club in January. It was my first time doing Kickboxing so I was nervous, but I wanted to try something new for my workout regimen. Let me just say I am so glad I went to this gym versus else where. All the trainers are very knowledgeable, welcoming, helpful and simply fun to be around. They ensure to push you to your abilities and progress you from the punching bags to partner pads (which I really enjoy). Every class is different as there are different trainers, but you will have your butt kicked every time!!!!!

Free pair of gloves (the blue one) from One Love Fit Club Walnut and my old gloves from back home.

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4 years ago

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2 years ago

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2 years ago

Ren, is the most amazing trainer I have ever had. He is extremely knowledgeable, flexible and down to earth. He is second to none.

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5 years ago

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Ask the Community - Blvck Box

Do you offer varios classes on the weekday and weekends?

Hi! Thank you for your interest and question! Currently we only offer classes: Mon-Friday @10am… 

Hi do you have a Thai boxing class?

Yes we do! Come check us out for free!

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Review Highlights - Blvck Box

“Sign-up for their five class deal and come experience why this place is true to their name, One Love Fit Club.”

Mentioned in 22 reviews

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Verify this business for free

People searched for Gyms 4,058 times last month within 15 miles of this business.

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Supreme Striking Martial Arts

Supreme Striking Martial Arts

5.0(16 reviews)
5.7 mi

My two boys and I attend Supreme Striking, and we've been going since about April of this year. It…read morehas been a great way for us to stay active, bond as a family, and it's honestly a place where I'm happy to be. The coaches take their time to explain the reasoning behind each movement and the importance of proper form, which has really helped us learn and improve. The environment created by the coaches, staff, and students is welcoming and supportive. They truly embody the word TEAM. I feel like I belong to a great community while also bettering myself physically and strengthening the mind-body connection. I am becoming stronger, more disciplined, and more confident with every class. I'm so glad we found Supreme Striking, and I'm excited to continue this journey with my boys.

I can't say enough good things about this place! I've been coming for about two months. I'm taking…read moreboxing and trying to build my stamina and strength. Coach, Rob and coach Kris, are great at getting me motivated to work hard and push past BS so that I can get the results I want. The people are friendly and they have a lot of community building activities if your into it... This is the first time in my life I've been consistent with exercise! Highly recommend if you want to work hard and learn new boxing skills. It can feel intimidating at first, but everybody's friendly if I could give it 100 stars I would.

Photos
Supreme Striking Martial Arts
Supreme Striking Martial Arts
Supreme Striking Martial Arts

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Fitness Underground - Another view of the gym featuring a spacious dumbbell area.

Fitness Underground

4.9(56 reviews)
1.3 mi
Family-owned & operated
Established in 2017

Recently was buzzed in for a day pass and it's clear the owner, Ian, care a lot about his…read morepowerlifting gym. It's well equipped (6-8 benches with safety racks, 3+ deadlift stations, a couple of squat racks, a decent amount of machines) and has calibrated plates for competiton. Also, it's indoors with central air and super clean! Some cardio machines as well. It's the only dedicated powerlifting gym I've seen in the area. Unfortunately it's just a hair too far to be practical for my training but I wish I could be a member here.

I was in the area and I was looking for a gym that was a little less crowded and this exceeded my…read moreexpectations. I saw the reviews for this place and decided to call and get a day pass. It's true that people are more respectful at this gym because when I walked in everything was clean and everyone was wiping things down and re-racking their weights. It makes for such a better lifting experience when everyone respects the equipment and facility. You sign up on an app and you beep in via a bluetooth system which was convenient for my early morning lift. I even got to meet the owner Ian, and he was cool and helped me get a day pass fast which was great! I intend to come back here! 10/10.

Photos
Fitness Underground - Main Gym Area. Dumbbells, cables, plate loaded and selectorized machines, squat racks, turf area

Main Gym Area. Dumbbells, cables, plate loaded and selectorized machines, squat racks, turf area

Fitness Underground
Fitness Underground - Excellent equipment, check out this Leg Machines

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Excellent equipment, check out this Leg Machines

Blvck Box - gyms - Updated October 2026

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