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The number that changed everything for me was 89 mph.
Not because it was impressive. Because I thought it was going to be a lot higher.
It was my very first Stack System session — December 6, 2024. Before anything else, the app measures your Driver eSpeed to establish a true baseline. I stepped up, took my swing, and watched the number come back: 89 mph. Distance potential: 215 yards.
I genuinely thought I was faster than that. I’m a competitive amateur golfer. I play in SCGA tournaments. I’ve been playing this game seriously for decades. And here was this app telling me my driver speed was sitting at 89 mph with the distance potential of a casual weekend hacker.
I stared at that number for a second. Then I got to work.
If you’re researching Stack System swing speed results before deciding whether to invest in the program, this is the article I wish I’d had. Real numbers. Real programs. A real plateau — and the honest reason behind it. No hype, no cherry-picked data. Just what actually happened over 14 months of training — these are my real Stack System swing speed results.
Why I Started the Stack System at 56
I’m 56 years old and I compete in the SCGA One Day Series. I’m not out here just trying to break 80 — I’m trying to win my flight. I knew that if I could add real, measurable swing speed, I’d have a legitimate edge over the field.
The Stack System is built around overspeed training. The Stack itself is a 41.5-inch trainer that comes with 5 milled weights enabling 30 unique weight combinations from 0g all the way to 300g. It’s not a swing tip. It’s not a feel drill. It’s athletic training applied specifically to the golf swing.
To get started you need three things: the Stack trainer with its 5 weights, a swing speed radar, and a phone or tablet running the app. I’d strongly recommend the Stack Radar Bundle — it integrates seamlessly so your speed is tracked automatically every session.
My Stack System Swing Speed Results: Program by Program
| Program | Start | End | Dates | Sessions | Swings |
|---|---|---|---|---|---|
| Program 1: Foundation | 89 mph | 94 mph | Dec 6, 2024 – Feb 22, 2025 | 18 | 100 |
| Program 2 | 94 mph | 99 mph | Mar 2 – May 11, 2025 | 24 | 157 |
| Program 3 | 99 mph | 101 mph | May 19 – Jul 27, 2025 | 24 | 141 |
| Program 4 | 101 mph | 106 mph | Aug 4 – Oct 21, 2025 | 24 | 141 |
| Program 5 | 106 mph | 105 mph | Oct 27 – Dec 31, 2025 | 24 | 157 |
| Program 6 (current) | 105 mph | 105 mph* | Jan 6, 2026 – present | ongoing | — |
*Current driver baseline as of March 2026, 3 sessions remaining. Driver eSpeed currently tracking at 107 mph.
Total gain so far: 89 mph → 105 mph driver baseline. That’s +16 mph in just over a year — with a Driver eSpeed of 107 mph.
What the First Session Actually Looks Like
The first session is your baseline — it includes both your driver and The Stack trainer in one continuous session. Set 1 is always done with your own driver so the app has a true starting point. My entire baseline session on December 6, 2024 clocked in at 13 minutes and 21 seconds.
- Set 1: Driver (8 swings) — Avg 89 mph (your baseline)
- Set 2: The Stack at 280g — Avg 73 mph
- Set 3: The Stack at 195g — Avg 78 mph
- Set 4: The Stack at 145g — Avg 82 mph
- Set 5: The Stack at 95g — Avg 90 mph
- Set 6: Trail arm only, 0g — 82 mph
- Set 7: Lead arm only, 0g — 81 mph
The app gives you 90 seconds to 2 minutes of rest between sets, and 10 seconds between individual swings. By the end of that first session I was already swinging The Stack’s 95g head faster than my baseline driver speed. Something was already happening neurologically — even in session one.
The Three Swing Types the Stack Uses
- Full Swing — The fastest swing you’d make in an actual round of golf. Controlled, on-balance, all out.
- Max Effort Swing — The absolute fastest you can possibly swing, even if you lose your balance. This is about training your nervous system to find a new ceiling.
- Step Swing — Start with feet together; as you begin your backswing your front foot steps forward to coordinate your weight shift into your lead side. A powerful drill for sequencing and timing.
A current training session looks like this:
- 8 Max Effort swings at 255g
- 8 Step Swings at 135g
- 6 Step Swings at 95g
- 8 Max Effort swings at 255g
- 6 Full Swings at 195g — these calculate your Driver eSpeed for the session
That final set of 6 swings at 195g is how the app measures your Driver eSpeed at the end of every session — your progress check built right into the training. The algorithm decides which weights and swing types to use based on your individual data. The rest periods between sets aren’t downtime either. When you’re swinging a 255g head at max effort, you need the full 90 seconds to 2 minutes to deliver everything on the next set.
The Grind: Programs 2 Through 4
Breaking 100 mph felt like a genuine milestone, but I’ll be honest — Programs 2 and 3 felt like slow going compared to Foundation. Going from 94 to 99 to 101 mph over five months required real consistency. The Grit score in the app kept me honest. I could see exactly whether I was hitting the recommended training frequency or making excuses.
Program 4 was my best program. August through October 2025, I went from 101 to 106 mph — a 5 mph gain in a single program. I was locked in. The SCGA One Day Series season was in full swing and I had a clear target: qualify for the championship and show up faster than the previous year.
I did both. My Stack System swing speed results that season were the best of any program so far.
Here’s the part most people wouldn’t include in their Stack System swing speed results article. Program 5, I lost 1 mph.
I went from 106 mph down to 105 mph. And when I looked at the data honestly, I knew exactly why.
The SCGA One Day Series Championship ran November 3–5, 2025. That tournament had been my training target for the entire season. When it ended, I mentally checked out. Goal achieved. Season over. The holidays arrived, family travel took priority, and I got lax with my sessions.
The Stack app doesn’t lie. My Grit score dropped. My speeds dropped. I lost a hard-earned mph.
Here’s what those Stack System swing speed results taught me that nobody talks about: speed is a perishable skill. You don’t bank it. If you stop training your fast-twitch fibers, they slow back down. It’s that simple – and it’s the most important thing my Stack System swing speed results have taught me.
When I saw that -1 mph, I didn’t get frustrated — I got remotivated. That’s when @115at56 stopped being a social handle and started being a real mission.
Where I Am Now — And Where I'm Going
I’m currently finishing my 6th program with 3 sessions remaining. My current driver baseline is 105 mph, with a Driver eSpeed tracking at 107 mph — both personal bests.
More importantly, the speed is showing up on the course where it counts. At a recent SCGA tournament at Soboba Springs, I shot a 73, won low gross and low net in my flight, and recorded my first competitive eagle. That doesn’t happen at 89 mph. Read the full Soboba Springs recap here.
The goal is 115 mph, and I’ll keep publishing my Stack System swing speed results every step of the way. I’m documenting every step of that journey under the @115at56 brand right here on MyGolfSwing.net. If you’re a golfer over 50 wondering whether overspeed training actually works at our age, my Stack System swing speed results say yes — but only if you show up consistently.
One Thing I Didn't Expect: Wearing Out My Grip
After months of Stack System training I noticed the grip on my Stack trainer was completely worn down. All those extra swings — 100 to 157 per program — add up fast. If you’re serious about the program, expect to regrip The Stack trainer at some point.
I went with the Golf Pride ZGrip Cord Golf Grip — firm feel, high-traction texture, built to hold up under serious training volume. I used the Wedge Guys Golf Grip Regripping Kit to do it myself — everything included. Easier than it sounds and saves real money.
Is the Stack System Worth It?
After 6 programs, 700+ training swings, and a 16 mph driver baseline gain from 89 to 105 mph — with a Driver eSpeed already at 107 mph — here’s my honest verdict:
Yes — but only if you stay consistent.
The Stack System is not magic. It’s a well-designed training protocol that delivers when you execute it. The app removes every excuse — it tells you when to train, exactly what to do, and how fast you’re going. The Grit score holds you accountable in a way that’s hard to ignore. The data doesn’t let you lie to yourself.
For golfers over 50 who think their best speed is behind them, I’m here with real Stack System swing speed results that say otherwise. I started at 89 mph at 55 years old. I’m at 105 mph driver baseline at 56, with a Driver eSpeed of 107 mph. The gap between where I am and 115 mph is closing.
Ready to find out your real number? Start the Stack System here.
Marino Cabrera is a 56-year-old competitive amateur golfer and SCGA One Day Series competitor from Southern California, documenting his journey to 115 mph swing speed at age 56 under the @115at56 brand at MyGolfSwing.net.