Guma i Sindalu Siha, LLC

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Schedule

08/23/2026 - 08/29/2026
23 Sun 24 Mon 25 Tue 26 Wed 27 Thu 28 Fri 29 Sat
23 Sun Closed
24 Mon Closed
25 Tue Closed
26 Wed Closed
27 Thu Closed
28 Fri Closed
29 Sat Closed
12:00am
1:00am
2:00am
3:00am
4:00am
5:00am
6:00am
7:00am
8:00am
9:00am
10:00am
11:00am
12:00pm
1:00pm
2:00pm
3:00pm
4:00pm
5:00pm
6:00pm
7:00pm
8:00pm
9:00pm
10:00pm
11:00pm

Youth Novice (Lv. 1-2)

4:30 - 5:30pm
4:30pm - 5:30pm

Youth Novice (Lv. 1-2)

DPDeren Perez JSJoann Salas Deren, Joann
Youth Novice (Lv. 1-2)
Monday, August 24 · 4:30pm - 5:30pm
Instructors:
Deren Perez Joann Salas

Youth Novice Ninja (Ages 6โ€“12)

Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.

๐Ÿ”น No experience needed
๐Ÿ”น Capped at 8โ€“10 students per instructor for safety and engagement

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Advanced (Lv. 3-6)

5:30 - 6:30pm
5:30pm - 6:30pm

Youth Advanced (Lv. 3-6)

DPDeren Perez JSJoann Salas Deren, Joann
Youth Advanced (Lv. 3-6)
Monday, August 24 · 5:30pm - 6:30pm
Instructors:
Deren Perez Joann Salas

Youth Advanced Ninja (Ages 11โ€“15)

Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.

๐Ÿ”น Coach approval or prior experience recommended
๐Ÿ”น Focused on skill-building and competition prep
๐Ÿ”น Capped at 10โ€“12 students per instructor

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Ninja Fit

6:30 - 7:30pm
6:30pm - 7:30pm

Ninja Fit

DPDeren Perez
Ninja Fit
Monday, August 24 · 6:30pm - 7:30pm
Instructors:
Deren Perez

Ninja Fit (Ages 16+)

Strength & conditioning designed specifically for Ninja Warrior training.

Ninja Fit is a semi-private group workout built to develop the strength, endurance, and grip needed to conquer ninja obstacles. Whether you're new to fitness or looking to level up your performance, this class focuses on functional movements that directly translate to success on the course.

Expect a mix of bodyweight training, grip work, core stability, explosive power, and conditioning circuitsโ€”all programmed with ninja athletes in mind. Workouts are scalable, so beginners can build a solid foundation while experienced athletes push their limits.

This is where you build the engine behind your ninja skills.

๐Ÿ”น All fitness levels welcome
๐Ÿ”น Focused on strength, endurance, and injury prevention
๐Ÿ”น Perfect complement to Ninja classes or OCR training
๐Ÿ”น Semi-private setting for more coaching and attention

This day is marked as closed. Reopen the day to edit or restore sessions.

Skills Lab

7:30 - 9pm
7:30pm - 9:00pm

Skills Lab

Skills Lab
Monday, August 24 · 7:30pm - 9:00pm

Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature โ€œLevel-Upโ€ program. Whether youโ€™re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Novice (Lv. 1-2)

4:30 - 5:30pm 4 / 20
4:30pm - 5:30pm

Youth Novice (Lv. 1-2)

Bookings: 4/20
JSJoann Salas Book
Youth Novice (Lv. 1-2)
Tuesday, August 25 · 4:30pm - 5:30pm
Instructors:
Joann Salas

Youth Novice Ninja (Ages 6โ€“12)

Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.

๐Ÿ”น No experience needed
๐Ÿ”น Capped at 8โ€“10 students per instructor for safety and engagement

๐Ÿ‘Ÿ Non-marking tennis shoes with laces are required.

(Strict no slip on shoes policy will be enforced)

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Advanced (Lv. 3-6)

5:30 - 6:30pm 0 / 20
5:30pm - 6:30pm

Youth Advanced (Lv. 3-6)

Bookings: 0/20
JSJoann Salas Book
Youth Advanced (Lv. 3-6)
Tuesday, August 25 · 5:30pm - 6:30pm
Instructors:
Joann Salas

Youth Advanced Ninja (Ages 10โ€“15)

Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.

๐Ÿ”น Coach approval or prior experience recommended
๐Ÿ”น Focused on skill-building and competition prep
๐Ÿ”น Capped at 10โ€“12 students per instructor

This day is marked as closed. Reopen the day to edit or restore sessions.

Skills Lab

6:45 - 9pm 0 / 20
6:45pm - 9:00pm

Skills Lab

Bookings: 0/20
Book
Skills Lab
Tuesday, August 25 · 6:45pm - 9:00pm

Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature โ€œLevel-Upโ€ program. Whether youโ€™re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Novice (Lv. 1-2)

4:30 - 5:30pm 5 / 20
4:30pm - 5:30pm

Youth Novice (Lv. 1-2)

Bookings: 5/20
DPDeren Perez JSJoann Salas Deren, Joann Book
Youth Novice (Lv. 1-2)
Wednesday, August 26 · 4:30pm - 5:30pm
Instructors:
Deren Perez Joann Salas

Youth Novice Ninja (Ages 6โ€“12)

Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.

๐Ÿ”น No experience needed
๐Ÿ”น Capped at 8โ€“10 students per instructor for safety and engagement

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Advanced (Lv. 3-6)

5:30 - 6:30pm 0 / 20
5:30pm - 6:30pm

Youth Advanced (Lv. 3-6)

Bookings: 0/20
DPDeren Perez JSJoann Salas Deren, Joann Book
Youth Advanced (Lv. 3-6)
Wednesday, August 26 · 5:30pm - 6:30pm
Instructors:
Deren Perez Joann Salas

Youth Advanced Ninja (Ages 10โ€“15)

Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.

๐Ÿ”น Coach approval or prior experience recommended
๐Ÿ”น Focused on skill-building and competition prep
๐Ÿ”น Capped at 10โ€“12 students per instructor

This day is marked as closed. Reopen the day to edit or restore sessions.

Ninja Fit

6:30 - 7:30pm 2 / 12
6:30pm - 7:30pm

Ninja Fit

Bookings: 2/12
DPDeren Perez Book
Ninja Fit
Wednesday, August 26 · 6:30pm - 7:30pm
Instructors:
Deren Perez

Ninja Fit (Ages 16+)

Strength & conditioning designed specifically for Ninja Warrior training.

Ninja Fit is a semi-private group workout built to develop the strength, endurance, and grip needed to conquer ninja obstacles. Whether you're new to fitness or looking to level up your performance, this class focuses on functional movements that directly translate to success on the course.

Expect a mix of bodyweight training, grip work, core stability, explosive power, and conditioning circuitsโ€”all programmed with ninja athletes in mind. Workouts are scalable, so beginners can build a solid foundation while experienced athletes push their limits.

This is where you build the engine behind your ninja skills.

๐Ÿ”น All fitness levels welcome
๐Ÿ”น Focused on strength, endurance, and injury prevention
๐Ÿ”น Perfect complement to Ninja classes or OCR training
๐Ÿ”น Semi-private setting for more coaching and attention

This day is marked as closed. Reopen the day to edit or restore sessions.

Skills Lab

7:30 - 9pm 0 / 20
7:30pm - 9:00pm

Skills Lab

Bookings: 0/20
Book
Skills Lab
Wednesday, August 26 · 7:30pm - 9:00pm

Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature โ€œLevel-Upโ€ program. Whether youโ€™re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Closed

4 - 9pm
4:00pm - 9:00pm

Closed

Closed
Thursday, August 27 · 4:00pm - 9:00pm

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Novice (Lv. 1-2)

4:30 - 5:30pm 0 / 20
4:30pm - 5:30pm

Youth Novice (Lv. 1-2)

Bookings: 0/20
KPKatrina Perez JSJoann Salas Katrina, Joann Book
Youth Novice (Lv. 1-2)
Friday, August 28 · 4:30pm - 5:30pm
Instructors:
Katrina Perez Joann Salas

Youth Novice Ninja (Ages 6โ€“12)

Introductory-level class designed for beginner ninjas.
This class focuses on developing coordination, balance, strength, and confidence through fun and safe obstacle challenges. Perfect for first-timers or younger athletes learning the basics of Ninja Warrior-style movement. Each week includes skill progressions and age-appropriate drills that promote focus and body control.

๐Ÿ”น No experience needed
๐Ÿ”น Capped at 8โ€“10 students per instructor for safety and engagement

This day is marked as closed. Reopen the day to edit or restore sessions.

Youth Advanced (Lv. 3-6)

5:30 - 6:30pm 0 / 20
5:30pm - 6:30pm

Youth Advanced (Lv. 3-6)

Bookings: 0/20
DPDeren Perez JSJoann Salas Deren, Joann Book
Youth Advanced (Lv. 3-6)
Friday, August 28 · 5:30pm - 6:30pm
Instructors:
Deren Perez Joann Salas

Youth Advanced Ninja (Ages 10โ€“15)

Progressive-level class for returning or older youth ninjas.
This class introduces more complex techniques, strength conditioning, and dynamic obstacles. Athletes build on foundational skills while working on grip strength, precision, and strategy. Suitable for students with prior ninja experience or athletic background in gymnastics, parkour, or climbing.

๐Ÿ”น Coach approval or prior experience recommended
๐Ÿ”น Focused on skill-building and competition prep
๐Ÿ”น Capped at 10โ€“12 students per instructor

This day is marked as closed. Reopen the day to edit or restore sessions.

Adult Ninja Class

6:30 - 7:30pm 0 / 12
6:30pm - 7:30pm

Adult Ninja Class

Bookings: 0/12
DPDeren Perez
Adult Ninja Class
Friday, August 28 · 6:30pm - 7:30pm
Instructors:
Deren Perez

Adult Ninja Warrior (Ages 16+)

All-levels class for adults from first-timers to advanced ninjas.

Our Friday Classes focus on obstacle technique, upper body, balance/agility and a mini course run.ย 

Whether you're just starting your ninja journey or training for competition, this class has something for you. We begin with fundamentals: bodyweight control, grip strength, obstacle basics, and safety techniques. As you progress, you'll take on more complex challenges like laches, warped walls, salmon ladders, and dynamic courses.

Coaches adjust for all levels and provide personal guidance based on ability. Build strength, confidence, and obstacle mastery at your pace โ€” or get ready for the next Ninja competition.

๐Ÿ”น Beginner-friendly & competition-prep ready
๐Ÿ”น Modifications and progressions provided at every level
๐Ÿ”น Great for fitness-focused adults or aspiring Ninja Warriors

This day is marked as closed. Reopen the day to edit or restore sessions.

Closed for Competition Prep

6:45 - 9pm
6:45pm - 9:00pm

Closed for Competition Prep

Closed for Competition Prep
Friday, August 28 · 6:45pm - 9:00pm

This day is marked as closed. Reopen the day to edit or restore sessions.

Skills Lab

7:30 - 9pm 0 / 20
7:30pm - 9:00pm

Skills Lab

Bookings: 0/20
Skills Lab
Friday, August 28 · 7:30pm - 9:00pm

Skill Progression
Level up your ninja skills at your own pace! This session is designed for members to practice techniques, refine movements, and progress through our signature โ€œLevel-Upโ€ program. Whether youโ€™re perfecting a tricky obstacle or building strength and confidence, our safe and supervised open gym environment lets you challenge yourself, track your progress, and improve your ninja skills.

IMPORTANT:ย Please use participants name when booking

This day is marked as closed. Reopen the day to edit or restore sessions.

Mini Games 2

1 - 9pm 13 / 75
1:00pm - 9:00pm

Mini Games 2

Bookings: 13/75
DPDeren Perez KPKatrina Perez JSJoann Salas Deren, Katrina, Joann Book
Mini Games 2
Saturday, August 29 · 1:00pm - 9:00pm
Instructors:
Deren Perez Katrina Perez Joann Salas

Quarterly Competition

Whether youโ€™re an athlete aiming to earn crucial ranking points for the national team, or someone looking to try something new, or a family seeking the excitement of ninja competition, this is your chance.ย 
IMPORTANT: Please use participants name when registering

Event Details

Date:

Sat AUG 29,
1-3pm; Youth Course (Ages: 6-13)
5-8pm; Teens/Adults (Ages:14-60+

Location: Guma i Sindalu Siha Ninja Gym, 458 S Marine Corps Dr, Tamuning, Guam

Divisions:ย 
Youth Novice: Ages 6-9ย 
Youth Advance: Ages 10-13
Open Division - Ages 14+
Masters - 40+

Competition Format:ย 

Twelve ( 12) Obstacles
earn points for each obstacle completed
rankings are determined by points first then time.

Registration
IMPORTANT: Please use participants name when registering

This day is marked as closed. Reopen the day to edit or restore sessions.

Adult Course runs

6 - 9pm 0 / 20
6:00pm - 9:00pm

Adult Course runs

Bookings: 0/20
DPDeren Perez
Adult Course runs
Saturday, August 29 · 6:00pm - 9:00pm
Instructors:
Deren Perez

Adult Course Run Nights

Put your skills to the test on a full-length ninja course designed for teens and adults. Adult Course Run Nights are structured but self-driven sessions focused on flowing through obstacles, building endurance, and preparing for competitions.

Details:

โœ… Access to a designated adult-level ninja course
โœ… Course resets and flow-focused training
โœ… No formal coaching โ€” self-paced runs encouraged
โœ… Staff present for safety and course management

๐Ÿ“ Recommended for ages 16+ย 
(Youth Level 5 are able to join at Coach's Discretion)
โฑ Duration: 3 hours of course runs and good vibes

Important:
Participants must have a signed waiver on file. This session is intended for experienced youth and adult athletes. No open gym during this time.

This day is marked as closed. Reopen the day to edit or restore sessions.

No sessions found

Youth Novice (White, Grey &ย Yellow Shirts | Levels 1โ€“2)

For beginners ages 6โ€“10. Focuses on safety, balance, basic movements, and introductory skills like grip strength and obstacle pacing. New members start here after their initial skills assessment. For ninjas building strong foundations in agility and control.ย 

Youth Advanced (Orange, Green & Green/Black Shirts | Levels 4โ€“6)

For the more advanced youth up to the age of 15. These classes include elevated obstacles, beginner laches, balance training, and learning to flow through multi-obstacle courses. Advanced athletes training for competition and leadership roles. Focus includes course linking, time-based challenges, advanced laches, and strategy. Eligible for monthly evaluations and Level-Up course runs.

Teen & Adult Ninja (Levels 1โ€“5) โ€“ Ages 16+

For ages 16+ and adults of all fitness levels. Whether you're new or experienced, this class adapts to your ability. Learn proper technique, improve strength, and train alongside others with the same drive. Adults start with an assessment to find their level and work up from there. Focus on grip strength, coordination, obstacle strategy, and performance tracking. Athletes progress through 5 levels with structured goals and skill benchmarks.

Level-Up Testing Sessions

Earn Your Next Shirt.
Held every two months, these high-energy sessions let ninjas attempt a full Rank Advancement Course. Clear your current level and move up with confidence!

Open Gym/Skills lab

Train at your own pace. Open Gym gives youth and adults a chance to practice skills, explore obstacles, or just have fun in a less structured setting.

Skill Lab is a weekday training time for our members to focus on specific skills required for leveling up in a dedicated environment

Birthday Parties & Private Events

Celebrate ninja-style! Reserve our space for birthdays or group events with obstacle access, private party areas, and optional ninja coaching. Outside food allowed in designated areas.