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Two people practicing Brazilian Jiu-Jitsu on grey mats inside a gym; one person is on their back with legs bent while the other leans over controlling their arm. Interior doors and padded columns visible.
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Open Guard Brazilian Jiu Jitsu Gym logo

Open Guard Brazilian Jiu Jitsu Gym

Oconomowoc, WI 5.0 (96 reviews)
GiNo-Gi
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HomeBJJ GymsWIOconomowoc
Open MatsGiNo-GiWheelchair Accessible
Google
5.0(96)

132 S Concord Rd, Oconomowoc, WI

Directions(608) 556-6338Website

About Open Guard Brazilian Jiu Jitsu Gym

Open Guard Brazilian Jiu Jitsu Gym in Oconomowoc, Wisconsin, is run by a team of dedicated instructors who bring a range of experience to the mats. Classes are led by coaches including Ryan Aultes, Tim Borchardt, Dave Waltendal, and Joshua Posey, each contributing their own approach to teaching and curriculum. The gym’s program structure reflects a focus on skill development and technical understanding, with specific classes such as Brown/Black Belt Curriculum Review for advanced students and general Curriculum Review sessions for adults looking to solidify their fundamentals. Training at Open Guard centers around traditional Brazilian Jiu-Jitsu, primarily in the gi, with a clear path for progression from core techniques to advanced concepts. The curriculum review sessions provide a structured environment for adults to revisit key positions and transitions, while the advanced classes offer higher belts the opportunity to refine their skills in detail. Alongside formal instruction, the gym maintains an open-door attitude for visiting practitioners, with drop-ins welcome at both classes and open mat sessions. The schedule also includes regular open mats, both gi and no-gi, where students of all backgrounds can train together and test techniques in live rolls. The facility is wheelchair accessible, ensuring that the space is usable for a broad range of athletes. Open Guard’s instructors emphasize a technical and practical approach to BJJ, creating a space where practitioners can build their game regardless of experience level.

Amenities

wheelchair_accessible

Schedule

Schedule auto-detected from this gym's website.

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1 class on today

10:00 AM – 11:00 AM

Open Mat

JPJoshua Posey
Open MatDrop-in
Check in
Check in

Open Mats

Friday

5:30 AM – 6:30 AMOpen Mat
Drop-inDave Waltendal

Saturday

10:00 AM – 11:00 AMOpen Mat
Drop-inJoshua Posey

Sunday

1:00 PM – 3:00 PMOpen Mat No-Gi
No-GiDrop-inJoshua Posey

Instructors

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Location

132 S Concord Rd, Oconomowoc, WI, 53066

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Contact

(608) 556-6338 www.openguardgym.com @openguardbjjwi

Upcoming tournaments near Oconomowoc

  • Combat Corner Grappling Championship | Dairyland OpenSep 12, 2026 · Milwaukee, WI
  • Grappling Industries WISCONSIN DELLSSep 19, 2026 · Wisconsin Dells, WI
  • FUJI BJJ Milwaukee Fall OpenOct 17, 2026 · Milwaukee, WI
All Wisconsin tournaments →
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Business Hours

Monday5:15 PM - 8:00 PM
Tuesday12:00 PM - 8:00 PM
Wednesday5:15 PM - 8:00 PM
Thursday12:00 PM - 8:00 PM
FridayClosed
Saturday11:00 AM - 2:00 PM
SundayClosed

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