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Z-Ultimate Self Defense Studios

1.5 ★★☆☆☆ 2 Google reviews · Karate dojo in Boulder, Colorado

Plan your first class

Hours

Monday 12–9 pm
Tuesday 12–9 pm
Wednesday 12–9 pm
Thursday 12–9 pm
Friday 12–7 pm
Saturday 9 am–3 pm
Sunday Closed

Hours shift for holidays, belt tests, and seminars — worth a quick check before a special trip.

The classes they run

Karate classes on the schedule at Z-Ultimate Self Defense Studios, confirmed in students' own reviews and the dojo's own info — not guessed from the sign out front.

Other martial arts here

Karate dojos are usually multi-discipline. Here's what else students mention training under the same roof at Z-Ultimate Self Defense Studios — mined from their reviews and the dojo's own info.

Disciplines are mined from reviews and the dojo's own info — they show what students have trained, not a formal class guarantee. If you specifically want taekwondo, jiu-jitsu, or kickboxing alongside your Karate, confirm the current schedule with the dojo.

What students say

The things reviewers bring up again and again across 2 Google reviews — in their own words.

builds confidence, discipline & respect 2 mentions

Your first Karate class at Z-Ultimate Self Defense Studios

Nervous about walking into a Karate dojo for the first time? Almost everyone is, and a good sensei expects beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling basic stances, blocks, punches, and kicks — not hard sparring. Step to the side whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot. What to bring: water, and a mouthguard if you have one — many dojos lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi and the belt your dojo awards you. Kumite (sparring) eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the sensei. It gets easier fast — most people feel far more at home by their third class.

Karate is a contact sport. Ease in, train within your limits, listen to your instructors, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Z-Ultimate Self Defense Studios

1651 28th St, Boulder, CO80301

Get directions

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this dojo? Claim your listing — it's free.