- STUCK ON
- A strongly out-to-in swing (club path −8.6°). Strikes were scattered and his 6-iron topped out at 151 yards.
- THE CAUSE
- His chest opened early in the transition, so the club came down from outside, steeply.
- WHAT CHANGED
- Softer grip pressure, and turning around the body's center while feeling the axis through the feet. Club path −8.6° → −2.8°, total 151 → 171 yd. His verdict: “a legendary session.”
Golf lessons in Yokohama & Tokyo · Ryuichiro "Rio" Iwama, pro coach & golfer
Press down. Spring up.
We work with gravity and ground force: the two things every golfer already has, whatever your age or build.
- Use that force in the right order and the right direction. That alone makes your swing more repeatable, and gets the most out of your game without muscling it.
- After each lesson, your drills land in LINE.
15 minutes on LINE. You'll walk away with a likely cause and the one thing to work on first.
TOUR PRO SUPPORTFor tour professionals →One-on-one coaching that sticks with you until it shows up on the course. Based in Hodogaya, Yokohama, with lessons in Center-Kita, Kannai, Higashi-Shinjuku and online.
Results
Find the cause, and the numbers move.
MORE CASES
02Man, 42 · handicap 5Five lessons: scoring average 82 → 76, greens in regulation 32% → 69%Details →
03Beginner · man, 36Broke 100 six months in, driver 150–160 → 210 ydDetails →
04Men's pro · passed the pro testScoring average 73 → 69.8, greens in regulation 59% → 70.2%, up-and-down ~40% → over 60%Details →
05Tour proDistance 279 → 302 yd, ACN Tour winDetails →
06Amateur · CFairways hit 2/7 → 6/7, face angle −3° → +1.5°Details →
07One lessonCarry 207.1 → 227.7 yd, spin ~3,700 → ~2,700 rpmDetails →
08Amateur · D8-iron carry 123.2 → 154.9 ydDetails →
Client voices
Your practice changes the very next week.
Send a video and you'll get a reply. Practicing on your own stops being guesswork.
“That was a legendary session”
A single-digit player. In one lesson his 6-iron total went from 151 to 171 yards. His words right after the lesson.
“The week between lessons becomes real practice”
A week on the drills and I can feel I'm better than I was. I never have to wonder what to practice.
“One lesson, and I shot 83 on the tough Seta course”
I'd been shooting 90 or worse. One lesson later I shot 83 at Seta. I finally understand what causes my misses, so the fixes make sense.
“He still looks at my videos after the lesson”
The drills come the same day, so I'm back on the range the next morning. He replies to my videos fast, so I'm never stuck practicing alone.
“My irons now go 2 clubs farther”
I was adding loft at impact, so my irons came up short for my speed. Now they go about 2 clubs farther.
“The most fun I've had in a lesson”
Of all the lessons I've taken, this was the most fun. I'm still enjoying the drills and keeping them up.
* Individual experiences. Results vary.
Finding the cause
Why does your ball do that?
If a fix doesn't stick, you were fixing the wrong thing. We look at your body and your numbers, not just your swing.
- 01Look at the body
A TPI screen shows what your body can and can't do, so we don't chase a swing you can't make.
- 02Look at the numbers
Trackman and Sportsbox AI put numbers on your ball flight and your swing. That's where the fault shows up.
- 03Narrow it to one
We pick the one thing behind the cause and turn it into your drills. The week between lessons runs on LINE.
TPI GOLF LEVEL 3
The body screen is TPI's, the same system the world's best players use. Rio is certified at Level 3, the highest there is.
- 18/20
- Of the last 20 major championships, 18 were won by players advised by a TPI Certified Expert
- 24/30
- 24 of the top 30 players in the Official World Golf Ranking are advised by a TPI Certified Expert
- 69/70
- 69 of Golf Digest's top 70 golf fitness professionals are TPI Certified or TPI Advisory Board members
Source: TPI official website (mytpi.com/certification), as published in October 2026
3-month program
Three months,
Three months,
one goal, together.
Not a one-off lesson. Three months that take you from finding the cause to proving it on the course.
Twelve weekly 90-minute lessons / drills every week / Q&A on LINE / one half-round lesson
Why three months?
3 monthsaround the loop
a few times
a few times
Free consultation on LINE · chat or call · 15 min
15 minutes. A likely cause,
15 minutes. A likely cause,
and your next step.
We talk through where your game is, by chat or call on LINE. Stopping there is fine. And if the 3-month program isn't right for you, we'll say so.
- 01Free consultation15 min · freeA likely cause, and the one thing to work on first.
- 02First diagnosis60 min · ¥16,500Measure your game, find the cause. One session is fine on its own.
- 033-month programonly if it fitsDecide after the diagnosis. There's no rush.
HOW IT STARTSAdd the LINE account and send one line about the miss that bothers you most. A swing video helps, but it's optional. No hard sell.
On a computer? Scan the QR code with your phone to add the account.
Locations
Home base: Hodogaya, Yokohama.
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Home base: Hodogaya, Yokohama.
Main venue: lessons now running at Hanz Golf Club
Hanz Golf Club
Rio's home base. Junior group lessons and tour-pro coaching happen here too.
- 138 bays across three floors
- Trackman Range with launch monitors
- Short-game area, restaurant, shop, club workshop and acupuncture clinic on site
60, 90 and 120-minute lessons (bay fee separate) See the fees →
1558 Bukkocho, Hodogaya Ward, Yokohama 240-0044
TEL +81-45-333-1119
INDOOR LESSON VENUES
Looking for an indoor lesson? See venues
- Driving Range Higashi-Shinjuku1 min from Higashi-Shinjuku Station. A Golfzon facility, so ball flight is measured on Golfzon's system (no Trackman here). Putting green, lockers.
- Kannai Indoor Golf Range5 min walk from JR Kannai. Trackman 4, putting green, locker room. Free rental clubs.
- GolfBox Center-KitaCenter-Kita area, Yokohama. Trackman 4. Details coming soon.
Indoor lesson Bay fee, balls, lesson fee and launch monitor use included. See the fees →
EQUIPMENT
- Trackman 4Measures club path through face angle. Used indoors and on course.
- Force plates (coming soon)Shows how your pressure shifts between your feet through the swing.
- CamerasSlow-motion review. You get your before/after video after the lesson.
- Focus bandHelps you feel what “in the zone” actually feels like (indoor and on-course only).
- Sportsbox AI3D capture, so we can look at your swing from any angle.
FAQ
Questions people ask before starting.
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Questions people ask before starting.
Can I just take the free consultation?
Yes. Plenty of people stop there. No hard sell, and if the 3-month program isn't right for you, we'll tell you.
Can beginners take lessons?
Yes. One client broke 100 six months after picking up a club. Rio explains what the numbers mean, one at a time, as you need them.
Where are lessons held?
Mostly at Hanz Golf Club in Hodogaya, Yokohama. Also Center-Kita, Kannai and Higashi-Shinjuku, or online by video or video call.
Can I take one lesson before the program?
Yes. Start with the first diagnosis: 60 minutes indoors, ¥16,500, bay fee and balls included. We measure your game and find the cause first.
Are lessons available in English?
Yes. Rio lived abroad for over 10 years and coaches in English as comfortably as in Japanese.
How do payment and cancellation work?
You pay on the day, at the venue, by card or cash. The 3-month program is ¥180,000 (incl. tax) for the three months, which works out to ¥60,000 a month. Cancel free up to the day before; same-day cancellations are charged in full.