powerful wide shot of a functional fitness athlete mid-wall ball throw in a dark, gritty gym. Chalk dust hangs in the air, sweat visible, and the energy of competition fills the space
Category

Challenges

daily challenges, rep challenges, time benchmarks, and ongoing personal fitness quests.

Athlete performing a deep controlled squat with upright torso and calm focus. Warm directional lighting, dramatic but clean shadows, visible muscle tension without strain
100 Squat Fitness Challenge: Build Strength Through Quality

100 Squat Fitness Challenge: Build Strength Through Quality

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Dark industrial gym environment at early morning light. Athlete moving steadily on a treadmill while another rows in the background
100 Minute Aerobic Training Challenge: Build Your Hybrid Engine

100 Minute Aerobic Training Challenge: Build Your Hybrid Engine

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Side view of athlete mid-SkiErg sprint, explosive effort, gym lighting with shadows
Join the 2025 SkiErg World Sprints (1000m Challenge)

Join the 2025 SkiErg World Sprints (1000m Challenge)

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Collage of athletes performing diverse RB100 challenges
#100: Your Ultimate Fitness Benchmark – Combine 10 RB100 Challenges Into 1 Relentless Test

#100: Your Ultimate Fitness Benchmark – Combine 10 RB100 Challenges Into 1 Relentless Test

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Athlete mid-rep hoisting a heavy sandbag onto their shoulder, hips extended, bag cradled tight
#99: 100 Sandbag Shouldering Reps (For Real-World Strength)

#99: 100 Sandbag Shouldering Reps (For Real-World Strength)

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Athlete performing a controlled step-back lunge holding dumbbells
#98: 100 Weighted Step-Back Lunges (Dumbbells, Barbell or Sandbag)

#98: 100 Weighted Step-Back Lunges (Dumbbells, Barbell or Sandbag)

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Athlete explosively launching a wall ball overhead toward a height marker on a brick wall, legs extended, arms fully vertical
#97: 100 Overhead Wall Ball Throws (Target for Height or Distance)

#97: 100 Overhead Wall Ball Throws (Target for Height or Distance)

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Athlete performing a side plank rotation, upper arm reaching under the torso
#96: 100 Side Plank Rotations (For Oblique Strength & Shoulder Stability)

#96: 100 Side Plank Rotations (For Oblique Strength & Shoulder Stability)

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Athlete mid-shoulder toss with a heavy slam ball, powerful hip extension
#95: 100 Slam Ball Shoulder Tosses (For Power & Stability)

#95: 100 Slam Ball Shoulder Tosses (For Power & Stability)

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Athlete mid-kettlebell clean with crisp form, bell tucked in rack position at shoulder, other hand stabilising
#94: 100 Kettlebell Cleans for Total-Body Timing

#94: 100 Kettlebell Cleans for Total-Body Timing

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Athlete at the bottom position of a hand-release push-up, chest on floor
#93: 100 Hand-Release Push-Ups for Perfect Form

#93: 100 Hand-Release Push-Ups for Perfect Form

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Athlete performing a strict ring row in a functional gym, body rigid in plank, rings suspended from rig, strong scapular retraction mid-rep
#92: 100 Ring Rows for Scapular Strength

#92: 100 Ring Rows for Scapular Strength

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Athlete performing box step-overs while holding dumbbells at the side, mid-stride over a plyo box
#91: 100 Box Step-Overs (With Dumbbells or Kettlebells)

#91: 100 Box Step-Overs (With Dumbbells or Kettlebells)

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Athlete mid-swing with a sledgehammer against a large tyre in a gritty industrial gym
#90: 100 Sledgehammer Strikes (Against a Tire)

#90: 100 Sledgehammer Strikes (Against a Tire)

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100 Weighted Glute Bridges
#89: 100 Weighted Glute Bridges (For Posterior Power)

#89: 100 Weighted Glute Bridges (For Posterior Power)

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