pour rocket fuel on your player's development

Youth lacrosse is more competitive than ever.

These days every young ambitious lacrosse player is putting in extra work on the field,  the real secret to accelerating lacrosse development away from the field. with strength & conditioning.

With the right strength & conditioning, players are building the foundational strength, power, and conditioning, sets them up for success long-term,  while giving them an dominant edge this season.

Elite lacrosse players are built off the field - and it starts now.

sign up & start training today

Now's the time to accelerate player development.

I gotta take it up a notch this year Dad…”

Last season Noah had been one of the last cut from one of the best youth teams in the state.

The truth was, he was a good lacrosse player – but his dad knew he wasn't ready to play elite lacrosse.

He had strong stick skills and a good vision for the game, but he was missing that strength and explosiveness that the dominant players his age all had.

But heading into this year's tryouts felt different. The last few month he had become obsessed with becoming a better lacrosse player. Daily wall ball, creating drills in the backyard to work on his dodges, ripping thousands of shots at a now tattered net, even going for runs and doing workouts at home

“Noah, you looked great out there buddy... Your game has come a long way, but we just don’t have a spot for you this year."

It was the conversation that all parents and athletes dread – he got cut. 

A couple days later, one of the assistant Coaches, who had played lacrosse with Noah's Dad, reached out...

"I hope Noah's not discouraged about getting cut. He's really improved his game this past year. He's obviously a hard worker and definitely has potential in lacrosse."

The Coach continued:

“...but we felt he was missing the speed to play at this level. Not only that, if he added some strength to his game, it would make him harder to play against and let him get gritty in those physical areas. He's got the skills and high potential to be an impact player, I think if he got into some quality strength & conditioning it would be like pouring rocket fuel on his development."

That's when he recommended checking out Coach Kyle & Relentless Lacrosse. We had worked with thousands of youth athletes at this point & earned a reputation for our work developing elite lacrosse players.

Noah's Dad knew the importance of strength & conditioning as players got into high school. But was hesitant working with a trainer, having seen Noah previously work with a local old school personal trainer who acted more like a Drill Sargent, putting kids through sloppy circuit training, than a Coach developing true athletic foundations.

Noah, like most motivated youth lacrosse players, didn’t need this.

He didn’t need a trainer to push him harder, he needed a game plan to make sure his work created results.

So that’s what we created for Noah – a 12-week game plan to develop the foundational strength and power he needed to thrive as an athlete, as well as the exact attributes that translate most to the field.

With the right guidance, Noah's work started to pay off. 

He started to look more like an elite player – more explosive, agile, and dynamic. He was strong on the ball and outmuscled other kids for ground balls. He never seemed to run out of gas. He went from occasional goal scorer to being the goal scorer. 

It started with coaches and other parents joking with the classic “what are you feeding that kid!” 

But the jokes quickly became serious conversations about what he was doing, what camp had he been going to, what coach he worked with – where did he find the edge?

The truth is, there was no secret sauce. No coach that was going to turn him into an elite lacrosse player. No workout that magically got him stronger.

It was Noah’s hard work applied to the right game plan.

That next season, Noah not only made that elite club but was an impact player all season, finishing third on the team in points. He also started on his JV team in his freshman season and even played varsity games.

At the time, we had created digital programs that were being used by pros and college players, but seeing Noah's results made us realize that youth players needed a blueprint to give them the exact structure they needed to develop into elite hockey players.

They had the ambition; they just needed the game plan – and that's when the Relentless Youth Development Program was born.

Since then we’ve had thousands ambitious youth players translate their hard work and hustle into true athletic development that gives them not only the advantage over players now, but long term.

We've been fortunate to watch many of these players unlock their potential to go from youth to varsity, earn scholarships, and continue to thrive in the game.

If you have a youth lacrosse player at home that's serious about becoming the best player they can be, then now is the time to start getting relentless with their training!

the relentless
youth lacrosse

Built to accelerate youth lacrosse player's development.  

The Relentless Youth Development Program is Strength & Conditioning program specifically designed for youth lacrosse players (under 15) to develop the strength, power, and athleticism that will allow them to not only skyrocket their development but also get ahead of other players this season.

This 12-week training system has been used by hundreds of players at all levels to develop the physical attributes that truly translate to the field & taking their game to the next level.

sign up & start training today

build a body built for lacrosse.

Start making your workouts count. Start training exact attributes that translate to lacrosse.

At Relentless, we build workouts for on-field performance. Delivering the exact Strength & Conditioning lacrosse players need to start moving, performing, and playing better where it counts. We deliver the training that translates.


Create a mobile body with exercises that address structural imbalances & restrictions so that you feel & move better.


Develop impactful  strength that actually that translates on the field & let's you play stronger on and off the ball.


Unlock the power that translates to on-field speed & agility while developing the shot power that leads to goals.


Enhance the athleticism to dominate games with plyo, agility, and footwork drills all designed for next level speed.

hockey workout program on phone

workouts designed for lacrosse players.

The exact workout structure that lacrosse players are using to build their body.

No more fluff, randomness, or bodybuilding style workouts. This is training 2.0 - with full-body and integrative workouts designed to challenge every facet of your body with each workout including:

Pre-Hab & Functional Mobility
Speed & Athleticism
Integrative Strength & Power
Conditioning, Core, & Mobility

12 weeks of optimized training

Get the exact game plan that will get your kid's training on the right track unlocking progressive growth & development.

Random training leads to random results. Maximizing player potential demands strategic training structure.  The 12 Week Relentless Youth Program is strategically designed with 3 distinct phases and progressive weekly workouts built to be continuously pushing players to higher levels.

phase 1: 

elite foundations

Build a body designed for lacrosse. Rewire the body for elite movement patterns. Develop movement fluency. Develop foundational strength.  

phase 2: 

explosive power & strength

Develop the strength & power that translates. Build the foundational strength & the explosive power unlocks more speed & fire power.

phase 3: 

on-field translation

From the gym to the field. Add a deeper layer of lacrosse specificity by developing the exact strength, power, & conditioning that translates on field.

meet your strength coach

The Relentless Youth Program was created by Coach Kyle –  Strength Coach, Lacrosse Performance Specialist, and founder of Relentless Lacrosse. 

Originally working with elite hockey players, Kyle earned a reputation for the training that actually translated to the game and quickly became sought after by local lacrosse pro and NCAA players. 

Combining intensive academic education and thousands of hours working hands on lacrosse players in the gym – Kyle has also worked on-field with elite skills coaches to break down the movement mechanics that can be refined and optimized through Relentless programs.

Kyle has become a go-to authority on performance optimization for lacrosse players and continues to evolve Relentless programs to ensure players have access to the best possible resources to elevate their game.

the most comprehensive program for youth lacrosse players. 

If your lacrosse player has the ambition to take their game to the next level - then now is the time to channel that ambition into development.

The Relentless Youth Power Program is the complete training system that delivers everything players need to eliminate guesswork from  training and get the exact game plan to elevate their game on the field to the next level.


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36 Unique workouts

Stop repeating the same workout for 4 weeks. We've designed 36 unique workouts so that each week comes with variety & challenge.
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video demonstrations

With a video library of 250+ exercises, always know the perfect form with an exact demonstration of each exercise in your workouts.
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    Interative pdfs

    No more boring PDFs. Each phase comes with a completely interactive & clickable PDFs.
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    printable tracking copies

    Want to get off your phone at the gym? Bring a printable copy of your workouts and track your progress with each workout.

plus free bonus resources

Becoming an elite lacrosse player goes beyond just workouts, it's becoming relentless with getting better. That's why we've created all the resources you need to truly take your training, lifestyle, and performance to the next level.

elite speed guide for lacrosse

$67.99 Value
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    Over 20 lacrosse-specific speed workouts that are specifically designed to develop elite athleticism and enhance the speed that translates to the field
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    Attack your specific speed needs with workouts focused on quick feet, first steps acceleration, top-end speed and power, change of direction, and multi-directional speed.
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    Complete workouts you can do anywhere, anytime. It doesn't have to be fancy to be effective. We have workouts do with ladders, hurdles, cones, and even just an empty field.

mobility, maintenance & recovery guide for lacrose players

$59.99 Value
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    The complete guide to building a limitless body that delivers the workouts you need to eliminate aches and pains, reclaim range of motion, and optimize your movements.
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    10+ mobility routines including active recovery workouts, functional mobility sessions, and passive stretch-based sequences – each specifically designed for lacrosse players.
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    Complete foam rolling protocols for lacrosse players to release common areas with tension and improve tissue quality.
hockey mobility workout training program

complete conditioning for lacrosse guide

$49.99 Value
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    Over 20 conditioning workouts specifically designed for lacrosse players to have more gas in the take. While others slow down, relentless players dominate.
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    Specifically designed for the energy system demands of lacrosse players with short-burst and high intensity work.
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    Choose your training method with workouts including: outdoor field workouts, bike workouts, treadmill workouts, and HIIT based bodyweight/complex-style workouts.

relentless anywhere guide

$69.99 Value
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    21 Workouts you can do anywhere, anytime. A busy schedule might keep you from hitting the gym, but it should hold you back from getting in a high quality workout. Now you can stay on track with your workouts from home or on the road.
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    Minimalist workouts designed for maximal results. Fit into your busy schedule with short and intense workouts designed to challenge all strength, power, speed, and mobility of lacrosse players.
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    Choose your workout based on your equipment. Workouts designed with just bodyweight, just bands, or just dumbbells – the equipment doesn’t matter, the work does.
at home hockey workout program

peak performance nutrition for lacrosse players

$99.99 Value
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    The most comprehensive nutrition guide for lacrosse players on the market with 55 pages taking a deep dive in everything from hydration, to macronutrients, to eating to gain muscle or lose fat, to optimizing performance and recovery.
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    Maximize your performance on game day with specific nutrition and hydration day protocols and sample meal plans.
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    Learn how to supplement your nutrition for peak performance and recovery with a deep dive into the “must have” supplements for lacrosse players and the protocols for each one. Learn how to take your nutrition to the next level with supplements.

everything you need to transform your game

Becoming an elite lacrosse is more than just following the right workout plan. That's why we created the complete game plan for lacrosse players to get dialled in to peak performance in all areas of their life from training and conditioning to mobility and nutrition - the Relentless Off-Season Program is designed for lacrosse players who are ready to commit to chasing their potential.

what's included: [total value $646]

12 week strength & conditioning program [$297]

Elite speed guide for Lacrosse [$67]

Relentless mobility & maintaince for lacrosse players [$59]

Complete Conditioning for lacrosse players [$59]

Relentless anywhere workout guide [$67]

peak performance nutriton guide [$99]

Member only video & resources to maximize training

Along with this, Coach Kyle and the Relentless team offers on-going support for players to make sure that you're maximizing this off-season and ready to dominate come training camp. It's time you commit to become relentless.


One time payment (USD) with lifetime access & updates!
sign up & start training today

it's time to commit to becoming relentless.


If your son or daughter has the ambition to become an elite lacrosse players, then the journey starts with developing the physical foundations that will allow them to maximize their potential and become dominant for years to come.

The Relentless Youth Development Program was built specifically for youth players to accelerate their development by building the athleticism, strength, and power while refining movement quality to build a truly elite athlete.

It's time to turn ambition into development. It's time to start training relentless.

12 Week Workout Program

Built specifically for Youth Lacrosse Players

trusted & used by 750+ lacrosse players


sign up & start training today
One time payment (USD) with lifetime access & updates!


What exactly do I get with this program?

You’ll have instant access to: 
- Your 12 week program (36 workouts) with both a digital version and printable tracking version.
+ The Elite Speed for Lacrosse guide with 20+ speed workouts. 
+ The Relentless Anywhere Workout guide with 20+ at home workouts. 
+ The Complete Conditioning for Lacrosse Players guide with 25+ conditioning workouts. 
+ The Relentless Mobility & Maintenance Manual with foam rolling, mobility, and active recovery protocols.
+ The Peak Performance Nutrition for Lacrosse guide with 50+ pages of nutritional guidelines including hydration, game day, body composition (losing/gaining weight), and supplements. 

You’ll also get access to the support of our team and Coach Kyle along with any new upgrades or additions to the programs. We’re constantly looking to create new resources to help our players thrive, and once you’re in the Relentless community we truly want to fuel your success. 

Seems expensive, why should I invest in this vs just doing my own workouts?

Many players can train on their own, but the truth is that random training creates random results. Success demands structure. 

Relentless Lacrosse was built to take the guesswork out of lacrosse player’s training and give them the exact structure that’s been refined by thousands of players to be proven to translate to the ice. 

Working with a Strength Coach that understands the specific needs of lacrosse players can cost upwards of $150+ dollars per session or joining a 12 week group training program can easily cost over $2000.

With Relentless Lacrosse, you have access to the exact workouts that pros are paying thousands of dollars for.

What kind of exercises are included?

Admittedly, a lot of these exercises will be new for a lot of athletes.

This isn’t just a classic bodybuilding style workout where you’ll see 3 sets of squats and lunges. Relentless programs are loaded with integrative exercises that challenge you with unconventional movements. 

You’ll have a Youtube Playlist with demonstrations of each exercise in that days workout so that you’ll always know exactly what to do.

What kind of equipment do I need?

This Relentless Youth program was designed to be performed with a super basic gym setup. We don't believe in big fancy gym setups or the flashy equipment.

While some players use a community rec centre or commercial gym, we've actually had an equal amount of players do this program at their home or garage gym. This program doesn't require machines or squat racks. All we need is:  dumbbells, cables/bands, kettlebells (can use DBs instead), a bench, a stability ball, and mini-bands.

We also have an exercise substitution guide for any equipment you might not have!

How do I access my programs?

Immediately after purchase you’ll have access to our members-only platform that contains all of your training programs and bonus resources. You’ll have lifetime access to this platform and will be able to come back any time to download your programs or get updated versions/new resources.

What if I’m not happy with the program or results?

We stand by our programs 100%. That’s why we offer a 100% satisfaction guarantee. Having seen thousands of players train with Relentless, we know lacrosse players who truly invest in this program and their training get results. But if you start this program and it’s not for you, just contact our team within 30 days and we’ll send you a full refund. 

What age of player is this for?

This program was designed for players under 15. While older players can and have used this program - we typically recommend they move to one of our more advanced programs if they have gym experience.


4.9/5 out of 1000+ reviews

Jeff Carlson

Philadelphia, PA

I coach high school lacrosse and just had my younger guy go through your relentless youth program. I want to make this training a prerequisite for all my future players. This is exactly how young lacrosse players should be training to create the foundations they need to thrive in this game. I’ve reached out to Kyle about building something for our high school program because I really thing these guys are best in class when it comes to lacrosse training.

Kristina K

Wilkes-Barre, PA
Prep School

Don’t delay! It’s 100% worth the cost!! Okay for the moms (like me) that don’t want to spend money on something that isn’t going to ACTUALLY help their kids (or that they’ll enjoy) let me break down it.. THE GOOD: they clearly spent hundreds of hours building the programs the workouts really address everything (including speed and mobility), the exercises aren’t just “weight lifting” or bodybuilding, every time I checked in on their workouts I saw them doing some cool exercise (that I eventually stole for myself). THE BAD: I wouldn’t say there’s anything toooo bad.. Only downside is that sometimes the workouts are a little bit long, like 60 min+ (my kiddos would probably prefer 45) butttt I never had to prompt them, they always enjoyed the workouts and did them to completion (even the stretching which i was shocked with!!). Maybe better suited to kids that have done some training before? (my kids havent done a ton, but had been in the gym with their hockey teams). OVERALL: definitely worth the purchase, I love that it’s taught them to actually workout properly and they’ve said it’s definitely made them stronger and more powerful on the field which they love. We’ll definitely be repeating this program (loveee the lifetime access) and look to more relentless programs in the future!

Ben Clarke

2026 (u14)

This program is worth 10x the investment just in the fact that it teaches kids proper strength & conditioning from day 1 and how to be an athlete. Both of our kids used this (12 & 14) and loved that they had something they could follow that was specifically for lacrosse & we as parents loved knowing that they were doing the right things to become better athletes. Worth every penny.

Sam H.

Long Island, NY

This is the program that ALL youth lacrosse players in America should be using!! I’m a personal trainer myself but never had any experience training youth athletes or lacrosse players so when I wanted to get my young guy into training I found Relentless Lacrosse and let me tell you.. These guys are the REAL DEAL when it comes to training. The workouts are structured super intelligently, so many exercises I hadn’t seen before (and have since stolen for my clients!!) and is perfectly built for developing athletes. My guy loved his relentless workouts and is noticeably stronger than other kids his age on the field. Coach is calling him the ground ball champ haha! Big thanks for sharing this program!

Scott Wilson

New York
Youth (2027)

Our son was told last year that he had the right skills but wasn’t strong enough to play hard teams. He came to us wanting to get into strength training and when I started look around at options out there I found the Relentless program. He’s been using it diligently and put on 12lbs of muscle so far! It’s been awesome to see him get into strength training and the confidence it’s giving him on and off the field.

Barb F.

Toronto, Canada

Hey Kyle, I just wanted to drop a quick note. I’m a physiotherapist so I’m SUPER picky with strength training, but reading through all your articles and seeing your approach to lacrosse training I knew that I had to get your program for my daughters. We’ve all loved going through it. It’s been perfect for them to have something structured to follow and I’ve really seen their progressions both with their training on the field. You have a fan with our family and we can’t wait to use another program next off-season!