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Challenges

100 reps. A new habit. A reason to show up.

The RB100 challenges bring Relentless Bravery into your training: bodyweight tests, conditioning goals and everyday habits that give your effort a clear focus.

Choose a challenge that suits your starting point. Read its rules, scale the movement where needed, and favour controlled technique over chasing a number.

Latest challenge · 2026-11-12

Athlete standing upright with two dumbbells overhead, keeping her torso aligned over her hips.

Challenge · 12 Nov 2026

100 Overhead Presses: Can You Stay Stacked?

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Most recent

Athlete performing a shoulder tap from a high plank, with one hand touching the opposite shoulder and feet set wide for stability.

Challenge · 9 Nov 2026

100 Shoulder Taps: Can You Stay Square?

Athlete performs a side-lying leg raise with hips stacked and upper leg lifted

Challenge · 5 Nov 2026

100 Side-Lying Leg Raises: Keep Your Hips Steady

photograph of a steady bear hover with knees raised above the mat, naturally lit studio

Challenge · 2 Nov 2026

100-Second Bear Hover: Stay Steady

athlete performing an upright kettlebell suitcase carry, naturally lit gym

Challenge · 29 Oct 2026

100-Metre Suitcase Carry Challenge: Stay Tall Under Load

controlled standing calf raise, naturally lit gym

Challenge · 26 Oct 2026

100 Calf Raises: Keep Every Rep Controlled

controlled dead bug heel tap

Challenge · 22 Oct 2026

100 Dead Bug Heel Taps: Can You Stay Steady?

controlled back-to-wall arm slide, natural studio light

Challenge · 19 Oct 2026

100 Wall Slides: Can You Keep Control?

standing toe raises with heels grounded, naturally lit studio

Challenge · 15 Oct 2026

100 Toe Raises: Keep Your Heels Grounded

a controlled bodyweight hip hinge, naturally lit studio

Challenge · 12 Oct 2026

100 Hip Hinges: Move with Control

a controlled towel grip squeeze, naturally lit studio

Challenge · 8 Oct 2026

100-Second Towel Squeeze Challenge

an upright seated knee extension, naturally lit studio

Challenge · 5 Oct 2026

100 Seated Knee Extensions: Sit Tall

a controlled glute bridge, naturally lit studio

Challenge · 1 Oct 2026

100 Glute Bridges: Lift with Control

Showing 12 of 139

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Relentless Bravery. Fitness journalism, challenges, technique and hybrid race discovery.

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