# Checkmat Eidsvoll > Råholt, Norway | #<Affiliation:0x00006323ffb60298> ## Overview **Name:** Checkmat Eidsvoll **Affiliation:** #<Affiliation:0x00006323ffb60298> **Description:** Rambukk Kampsportsenter is a martial arts center located in Råholt, Norway, offering a comprehensive range of combat sports and fitness programs for all ages. Founded by Audun Martinsen and Arnfinn Martinsen, Rambukk provides a welcoming environment where members can develop their skills through quality instruction and a strong community spirit. The gym specializes in Brazilian Jiu-Jitsu as a Checkmat affiliate under Ricardo and Leo Vieira. Head instructor Audun Martinsen holds a first-degree black belt under Rico Vieira and has been training actively since 2010. He has achieved multiple international competition successes, including two IBJJF Master European Championship gold medals and two silver medals. Audun also brings extensive experience in self-defense and arrest techniques from his time as a police instructor. In addition to BJJ, the gym offers high-quality Muay Thai instruction led by Frank Hofstetter, a Swedish champion and World Championship medalist who has been training since 1995 and brings years of experience training in Thailand. Rambukk offers diverse training programs including Brazilian Jiu-Jitsu (gi and no-gi), Muay Thai, Submission Wrestling, CrossTraining (functional fitness), and Yoga (Vinyasa and flexibility-focused). The gym caters to all age groups with specialized kids programs (BJJ Kids, Thai Kids, and Ninjaskolen for ages 4-6), youth programs (ages 14-19), and adult classes ranging from beginner to competition level. The training philosophy emphasizes athletic development combined with discipline, technical quality, and a supportive community atmosphere. **Status:** Active ## Contact Information **Address:** Trondheimsvegen 266/268, Råholt Råholt 2080, Norway **Email:** kontakt@rambukken.no **Website:** https://www.rambukken.no **Social Media:** - Instagram: https://www.instagram.com/rambukk_/ - Facebook: https://www.facebook.com/rambukksport - YouTube: https://www.youtube.com/channel/UCbfso6mIkJuUG5tIrir_o2A ## Hours of Operation - Monday: 7:00 AM - 9:00 PM - Tuesday: 7:00 AM - 9:00 PM - Wednesday: 7:00 AM - 9:00 PM - Thursday: 7:00 AM - 9:00 PM - Friday: 11:00 AM - 8:00 PM - Saturday: 12:00 PM - 2:00 PM - Sunday: 12:00 PM - 2:00 PM ## Pricing ### Drop-in - Adult: 150 NOK/class ## Facilities & Amenities Yoga ## Instructors ### Audun Martinsen - Black **Role:** Head Instructor **Bio:** Audun Martinsen is one of the founders of Rambukk and has been training actively since 2010. He holds a first-degree black belt under Rico Vieira and Checkmat. Audun has multiple international BJJ competition achievements, including two IBJJF Master European Championship gold medals and two silver medals. He was previously an instructor in arrest techniques for the Norwegian police for several years. His classes emphasize athletic development combined with drive and quality. ### Arnfinn Martinsen **Role:** Instructor **Bio:** Co-founder of Rambukk Kampsportsenter. ### Frank Hofstetter **Role:** Instructor **Bio:** Frank Hofstetter began training Muay Thai in 1995 and has multiple national and international achievements. He is a multiple-time Swedish champion and World Championship medalist. Frank has spent extended periods in Thailand training and competing, bringing a wealth of experience to his coaching. His training sessions are characterized by high quality, humor, and high intensity. He started at Rambukk in 2015 and has built an excellent training environment for his students. ## Programs ### BJJ Fundamentals **Skill Level:** Beginner **Age Group:** adults **Gi Requirement:** Gi required **Description:** Beginner-friendly Brazilian Jiu-Jitsu program focusing on core techniques, positions, and fundamental movements. Open to adults 14+. ### BJJ All Levels (Gi) **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** Gi required **Description:** Mixed-level BJJ classes in the gi for practitioners of all experience levels. **Classes:** ### BJJ No-Gi Adults **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** No-gi grappling for adults focusing on wrestling, takedowns, and submission grappling without the traditional uniform. **Classes:** ### Submission Wrestling **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Dynamic and explosive wrestling with locks and chokes, drawing from Catch Wrestling, BJJ, Wrestling, Judo, and Sambo. Focus on takedowns, control, and submissions. ### BJJ Kids I **Skill Level:** All Levels **Age Group:** kids **Gi Requirement:** Gi required **Description:** Brazilian Jiu-Jitsu for children ages 6-13, teaching technique through play, discipline, and social interaction. 60-minute classes. **Classes:** ### BJJ Kids II (Advanced) **Skill Level:** Intermediate **Age Group:** kids **Gi Requirement:** Gi required **Description:** Advanced BJJ for kids ages 10-13 with more competition focus and technical development. 60-minute classes. **Classes:** ### BJJ No-Gi Kids II **Skill Level:** Intermediate **Age Group:** kids **Gi Requirement:** No-Gi **Description:** No-gi grappling for advanced kids ages 10-13. **Classes:** ### Muay Thai Basic **Skill Level:** Beginner **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Beginner Muay Thai focusing on fundamental techniques, conditioning, and strength. Open to ages 14+. **Classes:** ### Muay Thai Mixed **Skill Level:** All Levels **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Mixed-level Muay Thai classes combining technique work, pad drills, and conditioning. **Classes:** ### Muay Thai Competition **Skill Level:** Advanced **Age Group:** adults **Gi Requirement:** No-Gi **Description:** Advanced competition-focused training with heavy sparring, clinch work, and fight preparation. Requires 1+ year experience or active competition background. **Classes:** ### Thai Kids **Skill Level:** All Levels **Age Group:** kids **Gi Requirement:** No-Gi **Description:** Muay Thai for children ages 9-13 focusing on basic techniques, discipline, and athletic development. **Classes:** ### CrossTraining (Functional Fitness) **Skill Level:** All Levels **Age Group:** all_ages **Gi Requirement:** No-Gi **Description:** Dynamic functional fitness training developing broad physical capacity. Suitable for beginners and experienced athletes. Ages 14+. **Classes:** ### Vinyasa Yoga **Skill Level:** All Levels **Age Group:** all_ages **Gi Requirement:** No-Gi **Description:** Dynamic flowing yoga synchronizing movement with breath. Suitable for all levels, ages 14+. **Classes:** ### Yoga - Flexibility & Mobility **Skill Level:** All Levels **Age Group:** all_ages **Gi Requirement:** No-Gi **Description:** Yoga focused on improving flexibility, mobility, and recovery. Perfect supplement to martial arts training. **Classes:** ### Ninjaskolen **Skill Level:** Beginner **Age Group:** kids **Gi Requirement:** No-Gi **Description:** Fun martial arts-inspired program for ages 4-6 with parent participation. Focus on body control and movement through play. 45-minute classes. --- **Last Updated:** March 13, 2026 **Data Source:** BJJ.Space (https://bjj.space/gyms/norway/raholt/checkmat-eidsvoll)