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Jack PR Tracker & Community Times

Community-verified Jack personal records. See the top Jack times, RX standards, and where you rank against other athletes.

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PR Tracker / Benchmark Workouts / Jack

Jack — Workout Overview

Complete as many rounds and reps as possible in 20 minutes of:
10 push presses
10 kettlebell swings
10 box jumps
Background

U.S. Army Staff Sgt. Jack M. Martin III, 26, of Bethany, Oklahoma, assigned to the 3rd Battalion, 1st Special Forces Group, Fort Lewis, Washington, died Sept. 29, 2009, in Jolo Island, Philippines, from the detonation of an improvised explosive device.
Martin is survived by his wife, Ashley; his parents, Jack and Cheryl; and siblings Abe, Mandi, Amber and Abi.

Scoring: As Many Reps As Possible (higher is better)

Time Cap: 20:00

RX Standards

Men's RX
115-lb barbell, 1.5-pood kettlebell, 24-inch box
Women's RX
75-lb barbell, 1-pood kettlebell, 20-inch box

Have a Jack PR to share?

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Official PRs

Community-verified personal records. Only each athlete's best result is shown.

Men's Top Jack Scores

No official men's entries yet. Be the first!

Women's Top Jack Scores

No official women's entries yet. Be the first!

View Full Rankings

Jack — Frequently Asked Questions

What are the RX standards for Jack?
Men's RX: 115-lb barbell, 1.5-pood kettlebell, 24-inch box. Women's RX: 75-lb barbell, 1-pood kettlebell, 20-inch box.
What is a good Jack score for a beginner?
For beginners, finishing Jack at any score is a great starting point. As you build strength and conditioning, your times will naturally improve. The community median shown above gives a useful target once you have a base level of fitness. Don't compare yourself to elite athletes — track your personal improvement over time.
How is a Jack PR verified on KettleBoards?
After you submit your Jack PR, other KettleBoards athletes vote on whether it's legitimate. Each voter's influence is weighted by their own number of verified PRs. Once your PR earns at least 3 votes with a positive net score, it becomes "official" and is ranked on the public leaderboard.
Can I submit a scaled version of Jack?
PR submissions use the RX standard for each workout. The community voting process helps ensure submitted scores meet the RX standard. Scaled efforts are great for training but the leaderboard reflects RX performance.

Submit Your Jack PR

Get your Jack PR verified by the community and see where you rank.

Submit Jack PR View Full Rankings
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