Challenge ideas → Fitness
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30-Day Plank Challenge
30 days · Fitness
From 20 seconds to a 5-minute plank in 30 days.
Start with a 20-second plank and add 10 seconds a day. That's the entire program. It takes less time than brushing your teeth and by the end of the month your core is genuinely different. One of the highest effort-to-time-ratio challenges on the site.
The rules
- Day 1: hold a plank for 20 seconds.
- Add 10 seconds each day (breaks into sets allowed after 2 minutes).
- Elbows under shoulders, straight line from head to heels.
Tips from people who finished
- Do it right after something you never skip - after the morning kettle boils works for a lot of people.
- When your form breaks, the rep is over. Honest seconds only.
- Plateau days are fine: repeat yesterday's time and keep the streak.
Track it properly
The difference between "trying" this challenge and finishing it is usually a visible calendar. Create yours and you get:
- A 30-day calendar you tick off daily - with streaks and completion stats computed live.
- Achievement badges (day 1, 7-day streak, halfway, finisher…).
- A share link so a friend can watch and keep you honest - see the accountability playbook.
- A printable version for the fridge.