Join The

RSI Challenge

(Must be an active Sprint Club member to participate )

🤩 Prizes

1 Brand New iPhone

(1) Brand New iPhone will be awarded to the"Super Bouncy & Lucky" winner.

9 "XERO" Barefoot Shoes

(9) XERO Shoes will be awarded to winners of every category as $120 XERO giftcards.

9 Massage Guns

(9) Massage guns designed for deep tissue massage will be awarded to winners of every category.

9 Sprint Club Tees

(9) Official Sprint Club Tees will be awarded to winners of every category. Currently not available anywhere else.

Become A Member

📊 Categories

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1."Bouncy & Lucky"

Weighted Raffle. Each participant gets 1 entry, which then gets multiplied by their RSI score.

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2. "Lucky 3"

3 participants will be randomly selected through a raffle.

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3. "Most Inspiring"

The participant who posts the best story on how training their feet improved their speed inside the Results Chat of the Sprint Club.

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4. "Most Helpful"

The participant who is the most helpful in providing feedback, and tips regarding improving RSI/foot strength/bounce/speed inside the Sprint Club.

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5. "Best Outfit"

The participant who has the best outfit or costume during their RSI test.

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6."The Plug"

The participant brings in the most (new) Sprint Club members during the challenge. For more information on this, click here.

🦅 How to Enter:

Step 1.

Participants must complete the required 10-5 RSI test using the official procedure outlined on this page.

Step 2.

Once the 10-5 RSI is completed, submit their scores through the Sprint Club platform “Submit Here” section.

Please note: Participants must be members of The Sprint Club with a paid subscription and no overdue payments.

Participants can improve their scores and update their submissions throughout the Challenge period.

There is no limit on how many submissions can be made but it must be before the specified end date and time in order to qualify for the challenge.

By participating, participants agree to the Official Rules available at the bottom of this page.

Become A Member

📅 Challenge Period

The Challenge will run from September 1 to November 30. All entries must be submitted by November 30 at 11:59pm EST.

🏆 Winner Announcement

Winners will be first announced inside an official Livestream hosted inside the Sprint Club.

In the event of a tie, the winner will be determined by who has the highest 10-5 RSI score.

All decisions are final and binding.

🤨 What Is RSI?

What is RSI?

RSI stands for Reactive Strength Index. It is a scientific method to assess an individual's ability to "bounce".

In order to run fast an individual needs to have sufficient "bounce".

Keep in mind that having a good bounce or RSI score does not automatically make you fast since sprinting is complex and requires many variables.

However, if your "bounce" or RSI score is low, it will be difficult to make significant speed improvements and should be prioritized.

We have an entire course on this topic inside the Sprint Club called "Speed Bounce".

📃 How to do a 10-5 Test

Our official procedure:

1. Perform a squat jump from the ground with the hands on the waist.

2. Upon making contact with the ground, perform 10 jumps as fast as possible similar to pogo hops with the hands on the waist.

Rules:

1. Hands must be on the waist at all times.

2. The test begins with and includes the first ground contact after the squat jump.

3. No shoes are allowed. Socks or barefoot are fine.

4. The surface allowed is wood, track, or dirt. Using a trampoline, surface, or object that provides a significant unfair advantage is not allowed.

5. The video must be filmed from the front, full body, and as low to the ground as possible in order to ensure no cheating and maximum accuracy when measuring ground contacts.

How the assessment is measured:

We will count the ground contact and airtime of the 10 hops after the first squat jumps.

This includes the first ground contact after the squat jump.

To get your RSI score we will average your 5 best jumps and use the equation (airtime / ground contact time).

For The Cheaters:

If we suspect cheating, we will either ask for a retest or immediately disqualify the participant.